These problems just started yesterday.

1. If I click on the Notices Tab, the application closes

2. If I click on any of the Project buttons (i.e. Home Page, Message Boards, Your Account, etc.) nothing happens.

3. The only Help menu selection that works is "About BOINC Manager..."

I am running Version 7.4.42 (x64)under Windows 7

Here is the activity log.

5/13/2015 4:20:34 PM | | cc_config.xml not found - using defaults
5/13/2015 4:20:34 PM | | Starting BOINC client version 7.4.42 for windows_x86_64
5/13/2015 4:20:34 PM | | log flags: file_xfer, sched_ops, task
5/13/2015 4:20:34 PM | | Libraries: libcurl/7.39.0 OpenSSL/1.0.1j zlib/1.2.8
5/13/2015 4:20:34 PM | | Data directory: C:\ProgramData\BOINC
5/13/2015 4:20:34 PM | | Running under account Brent
5/13/2015 4:20:34 PM | | CAL: ATI GPU 0: ATI Radeon HD 5700/6750/6770 series (Juniper) (CAL version 1.4.1741, 1024MB, 991MB available, 2016 GFLOPS peak)
5/13/2015 4:20:34 PM | | OpenCL: AMD/ATI GPU 0: ATI Radeon HD 5700/6750/6770 series (Juniper) (driver version 1016.4 (VM), device version OpenCL 1.2 AMD-APP (1016.4), 1024MB, 991MB available, 2016 GFLOPS peak)
5/13/2015 4:20:34 PM | | OpenCL CPU: Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz (OpenCL driver vendor: Advanced Micro Devices, Inc., driver version 1016.4 (sse2), device version OpenCL 1.2 AMD-APP (1016.4))
5/13/2015 4:20:34 PM | | Host name: Office-PC
5/13/2015 4:20:34 PM | | Processor: 4 GenuineIntel Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz [Family 6 Model 30 Stepping 5]
5/13/2015 4:20:34 PM | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 cx16 sse4_1 sse4_2 popcnt syscall nx lm vmx smx tm2 pbe
5/13/2015 4:20:34 PM | | OS: Microsoft Windows 7: Home Premium x64 Edition, Service Pack 1, (06.01.7601.00)
5/13/2015 4:20:34 PM | | Memory: 7.99 GB physical, 15.98 GB virtual
5/13/2015 4:20:34 PM | | Disk: 1.36 TB total, 1.17 TB free
5/13/2015 4:20:34 PM | | Local time is UTC -7 hours
5/13/2015 4:20:34 PM | | VirtualBox version: 4.3.12
5/13/2015 4:20:34 PM | | Version change (7.4.27 -> 7.4.42)
5/13/2015 4:20:34 PM | Asteroids@home | URL http://asteroidsathome.net/boinc/; Computer ID 46994; resource share 0
5/13/2015 4:20:34 PM | Collatz Conjecture | URL http://boinc.thesonntags.com/collatz/; Computer ID 146850; resource share 100
5/13/2015 4:20:34 PM | Einstein@Home | URL http://einstein.phys.uwm.edu/; Computer ID 2503670; resource share 0
5/13/2015 4:20:34 PM | Milkyway@Home | URL http://milkyway.cs.rpi.edu/milkyway/; Computer ID 160569; resource share 0
5/13/2015 4:20:34 PM | pogs | URL http://pogs.theskynet.org/pogs/; Computer ID 12551; resource share 0
5/13/2015 4:20:34 PM | SETI@home | URL http://setiathome.berkeley.edu/; Computer ID 5465661; resource share 0
5/13/2015 4:20:34 PM | Cosmology@Home | URL http://www.cosmologyathome.org/; Computer ID 86370; resource share 0
5/13/2015 4:20:34 PM | primaboinca | URL http://www.primaboinca.com/; Computer ID 33165; resource share 100
5/13/2015 4:20:34 PM | PrimeGrid | URL http://www.primegrid.com/; Computer ID 400253; resource share 100
5/13/2015 4:20:34 PM | Collatz Conjecture | General prefs: from Collatz Conjecture (last modified 08-Aug-2014 07:22:30)
5/13/2015 4:20:34 PM | Collatz Conjecture | Computer location: home
5/13/2015 4:20:34 PM | Collatz Conjecture | General prefs: no separate prefs for home; using your defaults
5/13/2015 4:20:34 PM | | Reading preferences override file
5/13/2015 4:20:34 PM | | Preferences:
5/13/2015 4:20:34 PM | | max memory usage when active: 4091.53MB
5/13/2015 4:20:34 PM | | max memory usage when idle: 7364.75MB
5/13/2015 4:20:34 PM | | max disk usage: 100.00GB
5/13/2015 4:20:34 PM | | max CPUs used: 3
5/13/2015 4:20:34 PM | | (to change preferences, visit a project web site or select Preferences in the Manager)
5/13/2015 4:20:34 PM | | Resetting file projects/pogs.theskynet.org_pogs/pogs_image01.png: permanent HTTP error
5/13/2015 4:20:34 PM | | Not using a proxy
5/13/2015 4:20:35 PM | | Running CPU benchmarks
5/13/2015 4:20:35 PM | | Suspending computation - CPU benchmarks in progress
5/13/2015 4:21:07 PM | | Benchmark results:
5/13/2015 4:21:07 PM | | Number of CPUs: 3
5/13/2015 4:21:07 PM | | 3862 floating point MIPS (Whetstone) per CPU
5/13/2015 4:21:07 PM | | 9868 integer MIPS (Dhrystone) per CPU
5/13/2015 4:21:08 PM | pogs | Started download of pogs_image01.png
5/13/2015 4:21:09 PM | pogs | Giving up on download of pogs_image01.png: permanent HTTP error
5/13/2015 4:23:26 PM | | Re-reading cc_config.xml
5/13/2015 4:23:26 PM | | cc_config.xml not found - using defaults
5/13/2015 4:23:26 PM | | log flags: file_xfer, sched_ops, task
5/13/2015 4:58:28 PM | | Not using a proxy
5/13/2015 5:07:07 PM | PrimeGrid | Resetting project
5/13/2015 5:07:28 PM | Collatz Conjecture | update requested by user
5/13/2015 5:07:29 PM | Collatz Conjecture | Sending scheduler request: Requested by user.
5/13/2015 5:07:29 PM | Collatz Conjecture | Requesting new tasks for CPU
5/13/2015 5:07:31 PM | Collatz Conjecture | Scheduler request completed: got 1 new tasks
5/13/2015 5:07:31 PM | Collatz Conjecture | No tasks are available for the applications you have selected
5/13/2015 5:07:31 PM | Collatz Conjecture | No tasks are available for Solo Collatz Conjecture
5/13/2015 5:07:31 PM | Collatz Conjecture | Your preferences allow tasks from applications other than those selected
5/13/2015 5:07:31 PM | Collatz Conjecture | Sending tasks from other applications
5/13/2015 5:07:33 PM | Collatz Conjecture | Started download of mini_collatz_2396225266743152223347_103079215104
5/13/2015 5:07:34 PM | Collatz Conjecture | Finished download of mini_collatz_2396225266743152223347_103079215104

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You use BOINC Manager to easily control the underlying client which does all of the work (caching, contacts with projects, all of those messages) so it wasn't really necessary to show the event log.

In any case, navigate to %APPDATA%/BOINC (fill that in in Windows Excplorer) and open stderrgui.txt that's there. Anything of use in it? Anything in stdoutgui.txt?
Also check Windows Event Viewer (Start->type event viewer in the search, click the appropriate program to start it), Windows Logs->Application.

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Turns out I had contacted a nasty virus when I attempted to download a repair manual for my Craftsman leaf blower! I finally got rid of it by booting into safe mode and running a system restore to a time period before I tried to download the manual. Hopefully my experience will show that you have to be very careful out there! It is not just porn that will infect your computer!

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One of our systems had one as well, found out because of a lot of programs no longer wanting to work. It required the online Eset scanner to work through the night to fix that, as all other AV scanners and Malwarebytes said there was nothing wrong.

I was thinking to say something about that when I answered, but just because we have a similar sounding problem it couldn't possibly be you had it as well... :)

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