I am having some trouble with my apple wireless keyboard. It seems that the shift key is stuck. I have removed the key and there doesn't seem to be anything wrong with it. It is also causing OS X 10.5.8 to behave strangely. Minimizing windows takes a long time and it is also causing Firefox to open each link in a new window where my preferences are set to open links in a new tab. Is there anything I can do?