I bought a T90 from ebay which was listed to be tested and work in exc+ condition. When I got it it had the EEE error after every shot on every speed. I tried all the ghetto fixes, hitting it on some thing hard, firing the shutter ect and nothing seemed to work. I contacted the seller in America via email and telephone and he has been very nice, agreeing to refund and even look for a replacement T90. Today, after shooting then resetting for hours the shutter started working on the high speeds. After running though the high speeds for a couple of hours the mid range speeds started working consistently. Now the camera fires consistently on all speeds above 1/30. Last I check it would fire below 1/30 but lock up after a few shots. The camera has been lodged under a weight and firing on 1/45 for an hour now. I will check soon to see if the lower speeds have freed up. I don't know how permanent a solution this is and if I will have to exercise the camera every day but the seller has agreed to wait a week or two for me to continue testing and says that if it doesn't all clear up then he will still issue a refund/replacement. Don't give up on your T90 if it displays errors. It just needs some exercise and maybe some TLC (CLA) in the long run. Update: I think I may has risked overheating the motor drive as it is very hot but now the camera works on all speeds consistantly! Will continue the exercise on all speeds in a couple of hours.