I also had this problem.
My problem was based in the fact I had updated the kernel and therefore it didn't have the modules installed in it (something like that?!).
I then read where the vmware program was stored.
When I ran it from the command line, it scanned the kernel (?) and realised the kernel needed the modules ( or hooks?).
It asked for the admin password, then downloaded and installed the modules for the vm and the kernel.
I had another vm window (not working) open before I did this. It asked to take ownership, I clicked Cancel (no).
I then opened up the vm again, and it worked.
Note: Was on Ubuntu.
Last edited by gn000we; 05-03-2011 at 08:28 AM.