Unhelpful error message "X" for mismatched label

For an HTML 4.01 document, containing the line

  <label for="text">for</label>

where no element with id "text" exists, the validator error message from 
validator.w3.org reads, in all its glory:

"Error: X"

Matthew Wilson

Received on Tuesday, 2 April 2002 14:41:52 UTC