I can't reproduce this issue on my Mac OS 10.6.4.
Please, describe the problem more detailed:
- what version of Mac OS do you use?
- app hangs at start or a little later?
Please, try Parallels Desktop 5. Is this issue still present on Parallels Desktop 5?
upd:
Please send a problem report and tell me it's number. I'll compare your configuration with my own.
Last edited: Aug 18, 2010