Hi,
It seems that a javascript menu (top of the page) has some problems with IE7 (Firefox no problems). After expansion there are two areas black instead of green and that is not a goal of the designer of this theme I think :-) I tried to solve this and looked to the css file, but my coding skill has no chance :-) If you will have some time, please look at this, maybe it is only banality. Thx
P.S.: I also checked some others galleries with the foliage theme and the problem is not only mine due to some changes or something. Screen included.
Read the announcement thread for the foliage theme: http://forum.coppermine-gallery.net/index.php?topic=35953.0 !