Problem displaying apps in webtop

I am having a problem displaying all of the applications on the left-hand side of the SGD webtop (using standard login option on v4.2). Some of the application icons are rendered, and then the following error is displayed:

Error Page

The following exception was thrown:

But it doesn't say what the error is?!

Also, if I login with classic webtop (<server>/tarantella), all of the application icons are displayed (cool, but inconsistent with "standard" login (<server>/SGD))

Has anyone seen this and/or does anyone know how to fix it?

[583 byte] By [MichaelHoldena] at [2007-11-27 8:04:08]