Maybe you are searching in a specific category and do not realize it?
Maybe ebay has put you it one of its "beta search test groups". They pick users at random to "try out" new search engines. I've found that sometimes the ebay search will act too smart, and put you in "ticket mode" if it thinks you want tickets, or "auto part" mode, if it thinks you want auto parts.
__________________ www.montneel.com "the evidence strongly suggests that neither Billy nor Adam (Smart Parts) could have invented the electronic paintgun" -Garr M. King, U.S. Judge