How did you measure your temp? I think you still may have your GPU overheating. Or, may be you have some video ram errors. But it's most likely hardware problem... Try to run some stress tests on your HW. They may show you something interesting

I think that there are no problems with gpu's vendor, but 4GB ram may be your "bottleneck" for this time P.S: Sapphire Radeon HD4890+C2D E8500+8GB Ram +Max settings (except tree details) = 40+ fps.

It will be fantastic to be ganked by lvl 50 players and to wait 20 minutes on mobs spawns to complete storyline quest... Players from today waves are really very lucky ^_^ P.S: I'll try to find my post... it should be funny )

just imagine, that after 2 days of "early access" they told us something like that: "Sorry guys, but servers are full for now. pls be patient and wait until we buy more >_<" P.S: and yes... on 12/20/2011 servers will be offline anyway ) or you just spent these day in queues )) enjoy it )