BuddyPress and Image Information

Hi,

just installed the theme. Till now everything works fine except two things.
1. BuddyPress
As soon as i activate buddypress, the header backgound shows a white block. If i deactivate buddypress everything looks fine. The issue is only shown on the start page. If i go e.g. into the forum the header image is shown correctly
2. Picture information
There is a frame with the information 468×60 shown in the header. This is not from the image.
Any idea how to get rid of it?
Thanks in advance.
TW