So when I left-click on thumbnails of DVD covers in the collection menu it skips me down to the DVD below it. So for example I have Blow directly above Catch Me If You Can in my collection list. But when I want to left-click and highlight Blow, my collection view moves down a row and it highlights Catch Me...

The same thing happens when I want to flag a title, if I click on the flag bow for Blow... the collection view moves down a row and Catch Me... gets flagged.

Is there anything I can do to fix this?

I think I remember problems similar to this in a previous version of Profiler - which version are you running?
Does the problem also occur if you have your collection viewed as a list, or only when you have thumbnails?

I fixed it... I have my thumbnails across the top of my screen. And apparently I didn't have the collection menu tall enough to show the whole pic (including shadow). I made the menu a tad bit taller and fixed the problem.

Thanks LDH & northbloke for trying to help!