I was hoping there was someone here that could help me get parallels running on my laptop or direct me to somewhere that can. Any help appreciated.

Whenever I try to open and run Parallels I get an error message that says "unable to connect hard disk 1...A file or device required for the operation of hard disk 1 does not exist or is used by another process, or you have no permission to access it. The virtual machine will continue running but the device will be disconnected." and it has the black screen up with some command prompts or whatever which i don't understand. Before I got this message there was a message about no connection to the internet on Parallels I believe. This is on my macbook pro running snow leopard.