[jQuery] Odd image button issue in IE

[jQuery] Odd image button issue in IE


My client has discovered an interesting issue with the nav on a small
site that I built out for him, and it only seems to happen in IE:
http://www.sdiarchitects.com/home.php
1) Click on a button, "Clients" for example.
2) Then click on another button, like "Contact Us".
3) If you click your back button, the text is missing from the button.
The only thing that I can think of is that it's got to be caching the
display property of the button somehow. But I've never seen this
happen before. Anyone have any ideas?