Thanks mrlobber for the tests......

Anyone's willing to test it as I described?....

Tip: You can go into Registry and change the "Windows Priority" from "2" which is default for the Win XP , to 66 (it will show you 102 finaly)....
It's under "Priority"....> HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l \PriorityControl
and DON'T use the Patch of Microsoft with multicore suport....It gives you NOTHING even in 3D, makes things worse...
It's under
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l \Session Manager\Memory Management\Throttle......IF you have alredy install it, then put it to "0".....