OK all, the saga continues and I thought I'd found the problem.
Friday night I found out my son had played all do on Team Fortress 2 and the system had not crashed.
So I ran 3DMark06 and it crashed after 1 minute. I thought maybe the AV (Norton 360) was bringing a popup up that I can't see. So I disabled it and it still crashed.
I downloaded SiSoft Sandra Professional and ran a diag test and all passed.
I loaded HOT CPU Pro and Core Temps and ran SiSoft Sandra on a benchmark test and the cores ran at 100% all through the tests and the temps never got above 65 degrees.
I ran 3DMark again ad it crashed. Now bear in mind that this is a 280GTX OC'd with 1gb DDR3 RAM and I run all my games at 1680x1280, the free version of only allows 1024x768 resolution. It ran and it craches. So I played COD MW2 Friday night and all worked fine.
Saturday morning I made sure all the latest Win7 and latest grfx drivers loaded and ran 3DMark, it crashed.....
So, now not completed conviced it isn't the grfx card I took my son 8800GTX and put it into mine and set up high res, ran 3DMark and it all passed no crashes...Yippee! after all that it's deffinitely the grfx card.
So I took my 280GTX put it back in my system and configured it up, no changes in BIOS between 8800 and the 280 booted up and ran 3DMark to make 100% sure the system would crash again........
Ran 3DMark as before...................it passed!!!!!!
I then ran it 4 more times and it passed every time!!!!!!
So I'm more confused now than ever!!!!!
Only thing I can put it down to is a dirty connector or a dirty track on the grfx card...
