My new computer has a built-in BlueTooth chip, which I got working fine, but after accidently turning the NXT off during debugging, RobotC no longer connects to my NXT. This is the error I get:

The computer recognizes the NXT, and before this window appears, it says "connecting to NXT NeXT-Gen" then, "searching for NXTs" and then "connecting to NXT NeXT-Gen" again. There is no prompt on the NXT for a passcode, and I've tried re-installing the drivers, removing the NXT and then readding it, everything I can think of. Any ideas?

Have you tried resetting the Bluetooth on the NXT itself? If so, does Windows recognize the NXT brick at all? Also, will it connect via USB and download?

If nothing else, we did just make a wiki page for setting up Bluetooth on the NXT, I'd say uninstall the drivers/reset setting on the NXT, reboot the computer, and start from scratch.
http://www.robotc.net/wiki/Setting_up_Bluetooth_for_NXT (Just in case )

Okay, I'll check that out. Just skimmed through it, and where you link to the list of BlueTooth adapters? Laurens Valk is not a girl. So, it should be "...Check it out at his blog..."

Haha, yeah, I saw Laurens just last week and judging by his voice and general looks, he's still a guy.

Laurens is the Dutch version of Lawrence.

- Xander

Thank you both for pointing that out, I fixed it ASAP. Now if you'll excuse me for a moment, I have to go wipe the egg off my face

Okay, so it's working again. After a few days, when I tried it again, it worked fine the first time . I didn't have to do any of that other stuff. Odd.