At just over 12000 miles on my (formerlly problem-free) 2001 Prius the display panel showed every warning light know to man. Driving to dealer (as advised by owner's manual) without problem I was placed in a free rental car and sent home. I will be without my Prius three weeks next Tuesday and weekly updates from Dealer report "computer on back order" and assure me I am "not alone" which would indicate Toyota may have a serious computer problem with (at least) the 2001 Prius. Should I be looking at the 2004 Prius or is this a problem confined to the 2001 model???