Funny thing about my blog.....?

Maybe its just my computer but I have had this problem before.  It seems as though my entries are at the bottom of the blog instead of in a frame-like format with the index on the left and my entries on the right.  If I use a rss feed program it looks just fine but when viewing it on a browser the format is wrong.  Like I said I have had this problem before and it just returned to its regular way after a few days - so I'm hoping that the problem will solve itself.