Ok this may be a little off topic but let's see if anyone else has this issue.  I'm running windows 7 x64,  and leaving it running it will run for months. If I leave cudaminer running it will run all day fine. But I leave it all night and my system hangs at random times. No bod,  no crash report. The system stays booted, but no display output, and the only way to do anything is to hold the power button down?

Everything is fully updated, anyone else got this problem?
Doesn't happen with keccak but I have noticed it a lot with script,  and scrypt-n

I'm using cudaminer 28-2-14