I have like 300-1000fps in dp. But when i play, it suddenly drops to 30-100 and the screen starts to lag/tremble. It's normal like 3min, then drops for 3min comes back normal for like 3min and so on and so on. Help appreciated.
Some info:
Windows XP
NVIDIA GeForce 8600GT
Intel(R)Core(TM)2CPU 6300 @ 1,86GHz
1GB RAM
Build 25