Cubase VST wont open with C-Media sound card

Hi, I have installed Cubase VST on a computer with a Creative soundblaster audigy 4 soundcard and the program opened, but when I installed it on a computer with a C-Media sound card it did not open, it just flashed once and then dissapeared. So I put the Creative soundblaster audigy 4 soundcard into that computer, installed the drivers for it, then took that sound card out, leaving the c-media sound card in, and then the program opened. Is there something else I need to install to get the program to work without having to put a soundblaster sound card in, install the drivers for it, and then take it back out?

Thanks for any help.