Hi, Excuse me if this is a question that has been asked before. I searched the forum and did no find anything in reference to my question. I added a second drive to my G5 and used up the extra 4 rubber coated HD screws. I then replaced the main drive but could not get 2 of the mounting screws out of the slots. I tried everything but they would not budge. Where can I order replacements? It is not worth the time to call apple support for this info. Would I be able to get screws at my local MA Apple store? Are there any screws generally available on the market that I could substitute?