1.2 here on 9800gt / e7500 / windows 7 64 bit , but i haven't encounter any problems with it like random crashes,glitch etc..maybe some trainer can crash your game..
--------------------------------------------------------------------------- Games that playing right now:
DiRT 3 Dragon Age 2 The Witcher 2 Assassin's Creed Brotherhood Section 8 Prejudice F.E.A.R. 3 Two Worlds II
I have almost the same setup, but I have 8GB of ram and Windows Vista 64-bit. I also crashed every 15 minutes but I updated drivers (10.3 to 10.4) and it fixed. For once, getting told to update worked.