I develop for clients who are still using Excel 2003 on Windows XP systems. Therefore we develop within a Virtual Machine running XP and Office 2003.
I often create menu or control sheets within files using Form Control objects, mainly button controls. Sometimes when I open these workbooks up, the controls resize themselves (bigger, smaller and/or out of proportion). On occasions I have had a control that when you click it, it gets smaller and smaller.
If you save the file after this has occurred, the changes are kept the next time the workbook is opened.
The big concern is that this could occur on an end user machine as well if they ever migrated to a different version of Windows and used the designed sheets within a VM.
Any suggestions greatly appreciated.