I bought Earthbrowser when it first came out. Since then, I have, in disgust, removed it from my HD at least 4 times (on both OS 9 & OS X). Those portions which have worked over that time have been beautiful. But at any one time, one out of 5 functions are non-functional. Today I couldn't get it out of full-screen mode. This time I am erasing the serial number! Yeah, I know - the developer will write that I should make inquiries to him. But why? I don't have the time to play fix the bug games.