let me tell you more. everytime i go to my CD drive, click on QUAKE3(D:) the error pops up. after i click on either option the pop up goes away but nothing pops up after. (im using a copy of the real CD and i have the keys)

everytime i try to install Q3A a pop up says: C:\WINDOWS\SYSTEM32\AUTOEXEC.NT. The system file is not suitable for running MS-DOS and Microsoft Windows applications. Choose 'Close' to terminate the application.

plz help me....