I have 2 problems right now. One is that on every window except a Finder windows, that is a shadow corner on the top. Better look in the picture below. I think this started when I updated to 10.4.3. Other problem is that my iBook takes up to 30 seconds to go to sleep whether pressing the power button or closing the lid. What's up? This all started when I updated to 10.4.3. Any solutions?