FS2004 will not load at all???

Hello i'm new to the forum but not new to FS2004 and have had it for a long time. The issue is that no matter what i do FS2004 will not start?....i have tried everything from the microsoft website and have even uninstalled and reinstalled. I dumped my computer last month and when i had FS2004 it ran awesome, i def have the memory. Basically the install is succesful but when i choose the run now option nothing happens at all, the CD4 spins and nothing happens? PLease help this is driving me insane.