Thats what happenes. I change the theme and suddenly I dont have my right side blocks. Is there something wrong w/ the theme or is it supposed to be that way. and I noticed its not just with one but a couple of themes.
While I'm here might ask another question: With what do I view Xhtml or thtml files? I noticed they dont open with Dreamweaver.

Anyone here who could help me out?

It would help when you mentioned the name of the theme ... It may be designed to be two-column only.

Edit the .thtml files with a text editor. Don't even try Dreamweaver or any other so-called WYSIWYG HTML editor.

bye, Dirk

some themes display the blocks diff. from others also if you have edited the headder.thtml file then maby the html code is not "alined" the ( { a broken without the corisponding ??
and you wont be able to see this in dream-UNweaver