Yes I know there are a lot of answers to this topic but I can't find a solution. The sidebar is dropped down when using IE 6. It looks fine with Firefox or Opera. I've checked the dimension of items and the number of posts. I've even reduced the padding. Yes, I've got a lot of mistakes when validating the xhtml but I don't know how to fix them. Everything is automatically generated by WordPress. I've just changed the style in order to fix the IE problem.
I hope someone could help me.
My webpage is here: