Don't know if this it's exactly related to this, but there is another vBulletin forum that I visit, eastsideboxing.com, and sometimes it gets very busy and overwhelms the servers. Often, they have announced that during these busy periods, they "turn off the search function" as it helps cut down on the load of traffic there.
Tivo HD Lifetime 1TB int, 1TB ext
Tivo 540040 400 GB Lifetime
Tivo S2DT 750 GB msd
Toshiba sdh400 r.i.p.