Ok - you are having some kind of problem when opening a SolidWorks file, but are you having the problem with other types of files and programs also? You should also let everyone know some basic specs of your computers (graphic card type, RAM, etc) and what service pack you are on.
Welcome to the forum.
I agree with Jeff. Is this the only file this is happening to? Almost sounds like this file is
corrupt. Have you tried this same file on someone elses machine to see if the same results happens?
You also may want to try and run the Solidworks Rx tool and see what that produces.
My guess is you are having a problem with your CommandManager. Please see the following thread and the answer from John Sweeney in this thread:
I hope this helps,