Hello I am new to this but thought of giving it a shot!

I am working on an assembly, open a part under the assembly to edit, and once I am done with any changes I click "save" and it automatically freezes. It will not allow me to minimize the window, close the window or anything else, the only hing I can do is open task manager and close the program that way and of course my work goes UNSAVED. this problem occurs whether i use a big assembly file or i use a "dummy" assembly consisting of a sphere and a block.

can anybody give me some advice ? I have had solidworks running on the same laptop for 4 months and this was never an issue ! I recently installed the new 2014 version and the problem begun.

Thank you !