I posted a link to an interesting software to deal with uneven backgrounds (among other things, of course) in the microphotography gallerie the other day. I had a request to repost it here, cause it might of general interest to some of you guys. So here it is, from the world of astro-photography and it is dead easy to handle!!
You will find an english version, if any language problems crop up, just ask back!!
A forum to ask questions, post setups, and generally discuss anything having to do with photomacrography and photomicroscopy.