Bless tool won't let me restart in Windows

When I go through my Mac's System Preferences and try to reboot in Windows, this message appears:

"The bless tool was unable to set the current boot disk."


I've had Windows through Boot Camp for about a week now, and it's been running fine until just now. Any fixes?

Thanks

Sounds like you have rEFIt installed? Check your "refit.config" file.

Where would I find that? I did a search in "All Files" but nothing came up... (sorry)

It should be located here:

MacIntosh HD/efi/refit/refit.config

The refit.config file is a plain text file and can be edited with TextEdit.