Driver Access Following Osx Reinstall

I just performed a reinstall of Mac OSX Tiger to clear up an audio problem. I used Archived settings mode and then performed a combined on-line update for OSX 10.4.10.

Following the reinstall (and unchanged since performing the combined update) is that I get the following message whenever I try to launch Parallels, which worked perfectly before the reinstall:

Parallels Desktop is unable to operate properly since it cannot communicate with one of its drivers. Try to restart the application to overcome this issue. If restart doesn't help, re-install Parallels Desktop. Note that Parallels drivers require a short time to be properly started and initialized. So you may need to wait a minute before trying to launch the application.

Restarting Parallels doesn't help and I need to access the Virtual Windows Machine without losing any of the data and am worried that is exactly what will happen if I perform a reinstall of Parallels. Can anyone help me resolve the problem?

 

Try restarting ze Mac. If that fails, completely uninstall Parallels and re-install it. Just be sure to back up your .hdd file first. If you use BootCamp, nothing should be harmed with an uninstall.

 

Thanks for your response. I don't use BootCamp. I'm just running Parallels over OSX. Restarting the Mac did not work, as I should have mentioned earlier. What is the procedure for backing up the .hdd file since I can't access the Windows side of my computer? Will I be able to do a clean restore of the VM following the Parallels reinstall? What is the procedure for doing so?