star wars: KOTOR 1.03 no-cd patch trouble

[sirrealist]

i have star wars knights of the old republic (updated to v 1.03), and im trying to get any of the 3 no-cd patches ive dowloaded to work, to no avail. ive tried the 2 on gamecopyworld, and the 1 on megagames, and every time i run the "launcher.exe" or any of the 3 new "swkotor.exe" files, i get a "star wars knights of the old republic has encountered an error and needs to close." when i click on details, it says the offending file is swkotor.exe. the weird thing is, yesterday i got the game to run once by using the "#1" patch on gamecopyworld and running the launcher.exe file. i have already tried uninstalling and reinstalling the game, updating, then replacing the kotor.exe with all 3 of the patch files i have, and i get the same error. any thoughts?