Chris,
I don't have access to a public test server to create a demo, but I'll
see if I can create a test case.
You might also want to look at the .hover command.
Can't you do this with normal CSS, or must you have a fancy fadein/
fadeout effect?
Have you considered the the case where someone rolls over the link
quickly? Any fade in or fade out will have some execution time
associated with it.
Brad