How can I repair a VMWare Fusion machine

I am using the newest version of VMWare Fusion.  I have a 64-Bit Windows 7 machine on it.  It has worked well until today.  When I try to open it up it won't open.  I don't get an error message but I have the VMWare Fusion icon in my dock and there's a bar underneath it that is black/grey with white stripes going through it like it's doing something like booting or repairing but it can do this for an hour or more and never stops.  If I actually click on the icon to open the program in front of everything else the menus are greyed out where I can't select anything.  I have a Windows XP machine that works fine so I know it has something to do with the specific Windows machine, not VMWare. 
My assumption is that the machine became corrupted. I have a backup of it but it's not a recent backup so I prefer to repair it. I did some important work on it that I don't want to lose.  Is there any way to do some type of repair on this machine or some other way to fix it?  Thanks in advance for your help.