[OzRob (Rob)]

For some reason I suddenly started to get eggy stars. The gear has been on a pier and nothing has changed. One night I started to get eggy stars when the scope was pointing east. There are no problems when it is pointing east. I have tried to change the balance with no change. I have checked and everything is tight. No cables are getting caught anywhere. The stars are elongated by up to 6 pixels along RA. Maximum guiding errors during exposures is 1 pixel with 2 second guiding exposures. Any ideas?