Office shapes move or duplicate themselves when I click them (VISTA/Windows 7)

Problem

• Shapes move up or right by a pixel when you click them.
• If you're pressing Ctrl while selecting the objects, you may also end up with multiple duplicate shapes.

Solution

This only seems to occur under Windows Vista (and perhaps Windows 7). If you're running either of those Windows versions:

• Go to My Computer, open the C:\ drive and navigate to Program files, Microsoft Office, Office 11 (or Office 12 if using PowerPoint 2007, Office 14 if using PowerPoint 2010).
• Locate the file POWERPNT.exe.
• Right click on POWERPNT.exe and select Properties.
• Select the Compatibility tab.
• Put a checkmark next to Disable desktop composition.
• Click Ok.
• Now open PowerPoint. You should get a message saying the color scheme has changed to Windows, Vista Basic and some visual elements are disabled temporarily.

Thanks to PowerPoint MVP Shawn Toh (tohlz) of PowerPoint Heaven for this solution.