FontAgent sorted me out not long ago.

You might consider FontDoctor, if you're on a Macintosh. Like any other powerful "fix-it" application, it is important to be knowledgeable about what you're "okaying", otherwise you could do some damage.

http://morrisonsoftdesign.com/fd_mac.html

I'm guessing Misa's having problems with her Macs, but for those who think a messed up TrueType or OpenType font may be messing with their Windows machines this tool might help locate the offending font...
http://www.microsoft.com/typography/developers/validator/default.htm

Also the more recent versions of Windows with all the security patches in place do a much better job of identifying the bad fonts and stopping them from screwing things up, than say Windows 98.

Si