Major post problems

Hola

After I added a second sidebar, wordpress went nuts. When I try to write a post in Firefox, there is no line break. In other words, the messages can be endlessly long. This also shows on the front page, naturally. In IE, however, it automatically starts on a new line after reaching the edge, as it’s supposed to. However, when I try to publish the post in IE, it simply says that the operation failed.

Why would this happen even though I haven’t even touched anything associated with the posting commands? Why can I post in Firefox and not IE?

-Fred