TechRepublic – Ask a Question – pn1.bc.yahoo.com

Every time when I submit a question or refresh the page where there is a question, my FireFox browser goes very slow at some stage and I see “Transferring data from pn1.bc.yahoo.com…” at the bottom left corner of the browser window. Has this URL got anything to do with techrepublic.com? Has my computer got virus or spyware?