Nvidia DVD decoder serious problem

Hello everybody!I’ve just installed on my pc Nvidia dvd decoder v.1.00.58,but I’m unable to use it.When I run the nStantMedia.exe file,and select any of the options (Watch movies,listen to music and so on),the system restarts,and when windows boots,I got this message:Windows has just recovered from a serious error .A problem has been detected and windows has been shut down to prevent damage to your computer. Into the tech info,I found this code:BCCode : 100000d1 BCP1 : F0592D46 BCP2 : 00000002 BCP3 : 00000000
BCP4 : EE192B03 OSVer : 5_1_2600 SP : 2_0 Product : 256_1.
I have no Ac3 filter installed on my pc,nor other codec (indeo xp or similar).I run WinXP sp2,athlon XP 3000+ and geforce 6600gt (Forceware 81.98).Can you help me?
Thank you in advance!

The PureVideo Decoder requires 6 series Card and at least Forceware version 100 or higher. So your problem is that you are using older forceware driver. You need to upgrade that then your problem will be solved. But if you are upgrading forceware, make sure to reinstall PureVideo software after installing newer version of Forceware