Raindrops Theme – Header Trouble

Hi
I have problems with the header on different sites.

On http://fetishchamber.com, the header is not displayed correctly anymore. At the beginning I thought it is due to the fact that the recommended header size has changed. So i changed the size to the exact recommendations. As I always do btw. But it still cuts the header off at the bottom.

On http://5d9.fbe.myftpupload.com/ the header diappears when i activate the Nextgen Gallery plugin.

Funnily enough i use the same plugin on getishchamber.com too and the header does not disappear.

Any ideas?

Thanks in advance