Of course it is bugged, you can not get this score at 950/970mhz, probably vga memory is at limit or something.
As i say, xp 64/340.52 is no better than xp 32bit.
You found a "secret tweak"? ==)), don't think so, as you run 3dmark 2001 with the same driver (very wrong one)
Please respect others work, and make a video about your huge score 3DMark 2006 run at 970mhz.