While in the updater, menu/configuration/addon/theme update settings/manage addon/theme servers...then menu then updatefeatured addon/theme server.

 

Also, don't forget that you need to use Amon RA recovery if you're going to use Warm updater.

 

See my last post, lol. You need to use Amon RA recovery instead of Clockwork if you want to use Warm Updater. Just remember you won't be able to use ROM manager if you switch to RA (not that I recommend using ROM manager; it's just a fact). If you want RA recovery, you can install ROM manager if you don't have it, then select the option to flash an alternate recovery. If you'd rather avoid ROM manager, you can get it from here. Instructions are in the thread for how to flash it. Let me know if you have any issues with that.

 

Yeah ROM manager is weird sometimes. If you want to try and make it work, you can uninstall it, then reinstall it, then it might work. Or you could just go the PC36IMG.zip file. It's more reliable, that's for sure.

 

Have you flashed anything else? First, try clearing cache and data for the market app in manage applications.

 

Try clearing market cache/data, then force close it, then reboot into recovery, wipe cache and dalvik cache, then reboot, and see if it still happens.