validator complaining about &

I'm getting this error on a page uploaded to validator.w3.org.  I don't
quote understand why as this is exactly what it suggested I put there.

...?referrer=yahoo&category=Education
                   ^
Error: unknown entity "amp" (explanation...)

I have recently also gotten the error with  .  Is entity checking
working?

Please use 'Reply to all', or reply directly to me, as I am not on this
mailing list.

--Kevin

Received on Wednesday, 12 September 2001 17:24:50 UTC