@NOKYARD
Another update:
I tried a, I think dirty, hack and have both plugins work together.
The only drawback is that you cannot have the Quick Post Widget displayed on the same page as the forum.
I tried WordPress conditional tags but couldn't get it working. That's why I tried some server variables.
The hack which worked for me: on line 1215 in version 1.8 of the quick-post-widget.php insert
if ( '/wptest/forum/test-forum' != $_SERVER['REQUEST_URI'] ) {
and end the block with a } (just above the } else { line.
Of course you need to replace the url part with your own and perhaps modify it a bit (use a like construcion for instance).
Again, this only works when the forum is on a page without sidebar or when for instance you use a plugin which conditionally shows widgets on certain pages.
Anyone who has a more elegant solution: please respond.
inapan