Cannot get Parallels to run

Details:

1. Mac OS Version: Leopard
2. Parallels Build #: 5584
3. What kind of computer: MacBook
4. Total Physical RAM: 2Gb
5. Hard Drives: 1x 200Gb
6. If you are using a BootCamp configuration or not: not
7. Did you upgrade from a BETA: an earlier build crashed and would not run so I installed the latest
8. With what Build did the problem start: don't know
9. If Parallels Tools are installed: yes
10. Anything you have tried to get things working: a 3.0 build installed and ran once but now will not run.

I wonder if there is a way to completely clean Parallels from my system so I can try a completely fresh install.

Thanks,
Scott.

 

what happens when you try to start parallels?