Track Rendering Problem - Cpu


the title is rather self-explanatory,

I have 2 VST’s running, I don’t understand why the track won’t render.

It keeps freezing up cuz my CPU reader reaches 99%, yet I have a powerful system

2G 800Mhz Ram
500G HD

could this have anything to do with the Onboard realtek drivers?

thanks in advance

listing the VSTs might help :P