i have not tried it but in the tweakuixp program from ms they have in there a way to change the size of the thumbnails.
now since the thumbnails are shown in the explorer by what appears to be the same way the covers are in the album art with details view is in mediamonkey, then changing that size might adjust the covers in monkey?
not sure how to change the thumbnail size in windows 7 or vista.
but if you really want to make them smaller then the 100 x 100 pixels they are now,
i'd try that thumbnail resize and see if it worked.
but it does not bother me they only show up with an extra space now.
i treat it asa it is the same as the gutter in the office page set up. and don't worry about it.

i have not tried it but in the tweakuixp program from ms they have in there a way to change the size of the thumbnails.
now since the thumbnails are shown in the explorer by what appears to be the same way the covers are in the album art with details view is in mediamonkey, then changing that size might adjust the covers in monkey?
not sure how to change the thumbnail size in windows 7 or vista.
but if you really want to make them smaller then the 100 x 100 pixels they are now,
i'd try that thumbnail resize and see if it worked.
but it does not bother me they only show up with an extra space now.
i treat it asa it is the same as the gutter in the office page set up. and don't worry about it. :D