I am running Windows 7 Enterprise on my desktop. I can access my PC using Parallels. However, when I start Excel (2010) and try to open a spreadsheet, I get the message out of memory. I restart my PC, and then try the same spreadsheet and it opens. I have no issues until the next time I access my PC with parallels. Could there be a memory leak where Parallels is not exiting gracefully after I disconnect my session?