Apologies for posting again but still havent been able to solve this:
When adding a tabpanel with lots of content to a centerpanel, the width is messed up and a horizontal scrollbar appears. Ive modified the standard complex example to show this as well as the thumb. Any ideas? Note: This only occurs in IE6, not FF or IE7 and at a resoltion of 1024x768 and below.
(Drop the zip file into ../examples/layout)
title: 'Close Me',
title: 'Center Panel',
html: 'This is some content',
height: 500 // To simulate a tab with a lot of content
html: 'This is some more content'