Need help with a problem ...

[The Dark Defender]

I have a problem when a play some games ... and I dont know what to do ... so guys pls help me ...
When I play Princ of Persia The Sands of Time or Advent Rising it seems I play in 10x speed mode and what ever I do reinstal my video drivers or reinstal my DX or just reinstal the game it's the same thing
it runs like high speed mode    so can some one give me a tip pls ? 

my PC : AMD Athlon Dula Core x2-1200Hz ; mainboard K9A2 GF ; Kingston 2GB DDR2 RAM ;
G-ForceFX 8600GT with 512mb DDR3 RAM

[The Dark Defender]

I solve my problem ... case closed