CSS Frames display problem

[DelanoSimpson]

I'm using the CSS Left, Top and Right Frames Layout which worked well in IE 6 and 7, but now have a problem in IE 8. No problem in FF or Google Chrome.

The mainframe moves to the bottom of the page and the bottom part of the information is hidden.

Example: http://www.johnkirkauctioneers.co.za...y=23/05/09&m=1

On other pages, the mainframe is displayed slightly lower than it should, but then jumps up to the right place when I hover outside the window.

If any one has ideas on how to fix this, I'd greatly appreciate it.

[hkp]

I am using the IE8 and firefox. And I have checked it in the both And I fond nothing difference.

[DelanoSimpson]

My client is having the same problem. That's why I'm querying this.