Technical problem with wordpress support Post: form

I wasn’t sure if this is the appropriate forum for this, but I would like to report a technical problem with the Post: form box of these wordpress forums.

In MSIE, the instant I start to type in anything in the Post: text box, the right edge of the box bounces completely off the right side of the screen and the scroll bar on the bottom disappears, to where whatever I type beyond it, vanishes out of sight into limbo. In order to be able to make this post, I had to compose my message then C&P it into the box when complete. This problem is only effecting MSIE (current version) and is apparently not effecting Mozilla. I only very recently began to experience this problem.