hello,

when i log out from boinc, sometimes my pc freezes and then an nvidia driver message that driver was not responding.
Im on win 8.1 64bit with sli gtx970 and i7 2600k processor, my computer is 100% stable as it can run boinc and other apps for as many days as I want, this problem just happens when I log out from boinc primegrid.

i'm unable to find out why, I have reinstalled the nvidia driver many times but this wont fix it.All software are up to date.

any ideas?

thanks