I've been learning and using SketchUp for a while and recently have been experiencing problems uploading to 3D Warehouse. When I try to upload from SU6 I get the spinning beach ball of death.
If I try to upload from SU5 Pro I've been getting an "Invalid Request" screen. It used to work but this seems to have happened since I upgraded to Leopard. Anyone know of a bug or a fix? I've tried someone's suggestion of converting to a GoogleEarth kmz file, still no luck. Is there perhaps a "preference" like file that needs to be trashed and/or reset? Do I need to uninstall and reinstall everything? 
Any help is appreciated. I would like to share more models in the warehouse but can't!
Thanks, Maurice.
Mac G5 tower 2Ghz(dual), 2.5GB RAM, OS Leopard 10.5.1
SketchUp 5 Pro (5.0.262)
SketchUp 6.0 (6.4.120)