Lower search textbox on search results screen not working as expected

After performing a search I see the search results screen.

If I change the text in the lower search textbox and press return the previous search is repeated, the new text is not used.
If I click the button beside the lower search textbox it works as expected, but if I hit return it does not.

(Is return tied to the upper text box only?)

Brian.

[361 byte] By [BrianOByrne] at [2007-12-16]