I recently had to do a new installation of Win7 64, so had to install LR3.6 64-bit and it's misbehaving! In the Library module the filmstrip and the grid/Loupe views don't play well together!
I left more detail in the Adobe Lightroom forum, so if you are interested or could help, check my post there:
http://forums.adobe.com/thread/972976?tstart=0![]()
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