How long since you last logged in? There hasn't been a patch for a while. For Classic Client If you have installed from a disc and do not have the new CC patcher that we got in March I strongly recommend uninstalling and starting fresh with the CC installer here Ultima Online Client Downloads | Mythic Entertainment | Ultima Online If you have the new patcher, launch the client without uoa (if you use it) and check the box 'full file check' If you use Enhanced Client launch the client and check the box 'full file check'.