General Support: thumbnail jiggles

I have installed the most recent version of plogger and am using the default theme.

I would like to prevent what can be best described as a "jiggle" when you mouse over the thumbnails of pictures in an album.

What is happening is an odd shuffling of the picures because of it. When you mouse over the thumb, you see the picture move ever so slightly (IE - jiggle), and when it does, it occasionally moves the other thumbnails around it to awkward positions.

Does anyone know how to disable the "thumbnail jiggle" (lol)