Following two excepts are from my machine immediately following new BOINC program install. First is from BOINC Client; Second is from Sysinfo. I reinstalled nVidia and PhysEx Drivers with no joy .. Help!

11/4/2009 11:32:52 AM Starting BOINC client version 6.10.17 for windows_intelx86
11/4/2009 11:32:52 AM Processor: 2 GenuineIntel Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz [x86 Family 6 Model 23 Stepping 10]
11/4/2009 11:32:52 AM Processor: 6.00 MB cache
11/4/2009 11:32:52 AM OS: Microsoft Windows XP: Home x86 Edition, Service Pack 3, (05.01.2600.00)
11/4/2009 11:32:52 AM Memory: 3.25 GB physical, 7.96 GB virtual
11/4/2009 11:32:52 AM Disk: 465.75 GB total, 453.76 GB free
11/4/2009 11:32:52 AM No usable GPUs found
11/4/2009 11:32:52 AM SETI@home Application uses missing NVIDIA GPU


[Devices-Display]
"Device name:
- NVIDIA GeForce GTX 260

Hardware location:
- PCI bus 1, device 0, function 0

Status:
- Device driver is loaded.
- Device is configured.
- Device can be rebalanced.

Problem:
- Device has no problem.

Device capabilities:
- N.A.

Hardware ID:
- PCI\VEN_10DE&DEV_05E2&SUBSYS_068E196E&REV_A1
- PCI\VEN_10DE&DEV_05E2&SUBSYS_068E196E
- PCI\VEN_10DE&DEV_05E2&CC_030000
- PCI\VEN_10DE&DEV_05E2&CC_0300

Compatible ID:
- PCI\VEN_10DE&DEV_05E2&REV_A1
- PCI\VEN_10DE&DEV_05E2
- PCI\VEN_10DE&CC_030000
- PCI\VEN_10DE&CC_0300
- PCI\VEN_10DE
- PCI\CC_030000
- PCI\CC_0300

I reinstalled everything again and made it work -- thanks anyway :)