I'm using Confluence 2.8.2 and evaluating Theme Builder 3.2.0. I've come across an issue with the Choose Layout option with Internet Explorer (version 6.0.2900.2180.xpsp_sp2_gdr.070227-2254CO), but the same steps work fine with Firefox. Unfortunately IE is the standard browser in my company and changing to Firefox is not an option for 10,000+ users. Nor is upgrading to a later version of IE.
The issue occurs after following these steps:
1) In Confluence, view a page from a wiki space you administer.
2) From the Edit menu, choose Administration - Choose Layout.
3) Internet Explorer will try to refresh the page, but the following prompt will appear:
4) After clearing the prompt only the page background is applied and no content appears.
On some occassions the behaviour changes so that this prompt is shown:
This wiki space only contains a single page, called Home. After clearing the prompt the navigation tree appears to remain in a "hung" state: