If I open version 11 Beta first and work with the Monthly Performance Report, when I open version 10.9, I receive an error message and can not open any portfolios. From version 10.9, I can then restore a portfolio (I made backups of all portfolios prior to installing version 11 Beta). After the restore everything appears to work correctly in both versions 10.9 and 11 Beta.
I have version 10.9 installed in a folder named "Fund Manager" and version 11 Beta in a folder named "Fund Manager 11".
If for some reason, I decide to un-install version 11 Beta, how do I do that without affecting version 10.9? I went to Control Panel-->Program and Features in Windows 7 and found only one instance of Fund Manager.