TinyMCE 2.0.1 editor display problems w/ WP 2.0

Hello! I’m using the TinyMCE 2.0.1 plugin (plugin homepage given as http://lifesinger.3322.org/myblog/?p=107 but it doesn’t seem to be working).

This is difficult to describe, but here’s my best shot at it.

When I go into the editor, the entire page looks absolutely normal *UNTIL* the page is loaded completely. Then the “categories” box gets shoved off to the left-hand side (halfway off the screen, actually!), and everything else gets shoved around in an odd manner, so the layout of the page is effectively garbled.

I’ve tried dragging the categories box back into place (as I’ve figured out that the editor boxes are draggable), but it just goes right back to where it was.

Does anybody have any ideas? Or can you point me in a useful direction? I’m fairly competent with both PHP and JavaScript, but I just don’t have time to try to dissect the entire code to figure things out.

Any help would be *greatly* appreciated. Thanks!