I have the same problem with build 2924 (Aug 30) on an XP Pro SP2 system, although it's working OK on Win2000. My home PC is XP Home SP2, but I don't have access to it right now to check. I restored the last nightly build I had downloaded (maybe a few days prior?) and had the same issue, so I put 2924 back.
When I try to create a new project, the dialog is empty for all categories. I'm not talking about user templates, but rather what's in C:\CodeBlocks\share\CodeBlocks\templates (on my system). All the files are there on disk, but they're not visible as templates in the dialog.
I've even looked through my default.conf, but didn't find anything there (didn't really expect to, since it's not a user-specific issue, AFAICT). Where is this config info kept?
Thanks.
[later]
I checked at home and it doesn't work there, either (XP Home). Weird.