Om man snabbt googlar efter problemet så hittar man detta på nVidias forum;
I think there's a heat problem with the 260.99 drivers.. i have observed this on numerous cards.. 8800GT,8800GTS,8800Ultra,9600,260,275,295,460.. when 260.99 installed they all have idle temps around 68C and at load it skyrockets to a stunning 116C as the highest but average somewhere around 100C some a little under and some over..
Downgrading to 258.96 temps drops to ca. 50C idle and 85C load
I think the high temperatures are the reason for ppl's performance drops..
Something is wrong with those drivers..
Cost a couple of my friends their Gfxcards..
http://forums.nvidia.com/index.php?showtopic=183887&st=340
Men hur detta är möjligt förstår jag inte, nVidia har ju aldrig problem med sina drivrutiner, vad jag har förstått, främst på det här forumet, så är det ju bara ATi som har problem med sina drivrutiner.