Knights of the old republic 2 issues.. Help please

[Hellbringer616]

Hi. I made a back up copy of my Knights of the old republic 2 incase my younger brother tried to break it.. he likes to do that... Anyway so he broke it. And i tried playing with my CD images and it won't let me. People say down load a no CD crack. but i herd some have spy-ware... But i downloaded one and tried playing it. which is worked and i didn't have spy-ware. But another issue arose which might be from this, but i don't know

My second issue is that i bought a new 128MB ATI radeon 9000. (was using an old Nvidia GeForce 4 420 MX with 64MB) and now i can't play. And for some reason my game says it won't work with the game because the drivers are out of date and the card's not faster enough...... Also it says it has 265MB not the 128MB it should have... Black & white 2 also says it has 256MB.

So i don't know if it's from the crack that i can't play the game anymore or what. But i have no clue whats going on.

Can anyone here help me???