Windows 8 and Multi-select

So I'm running the IDE under Windows 8. Everything seems to be working reasonably well. Just one tiny problem. When I have a form with 2 buttons on it, if I select one button I can tell which one is selected and drag it around no problem. If I select TWO buttons neither appears to be selected. But if I drag one button around the other one moves too so I know they are both selected.

Any ideas?