Horde3D

Hi all,

I'm currently getting to grips with Horde, and I've hit a problem that I can't see how to resolve.
When I enable anti-aliasing (i.e. "h3dSetOption(H3DOptions::SampleCount, 4);") and then minimise the window, I get the assertion "Expression: handle > 0 && handle <= _objects.size()". I've found this happens both for minimising a window and for tabbing out of full-screen mode, and only when I've enabled anti-aliasing. I'm at a bit of a loss as to what I've done wrong, as referring to the samples has not helped; they work properly of course, but having compared my code line-by-line I can't find what is causing the issue - I'm currently only using the default resources/scripts.
The source for my program can be found at SourceForge here: https://codenameawesome.svn.sourceforge.net/svnroot/codenameawesome.

Thanks very much in advance!