I have a Powerbook 1.67 and I am having a problem with the keyboard. I believe I have let something get under the tab and 'A' keys and they are now not working properly (they cannot be pushed without some effort). I was looking on the Apple site for information on how to get into this keyboard but I cannot find any instructions as everything I see is for the older Powerbook models with the tabs that release the keyboard. Can anybody give me any suggestions on how I can get whatever is under the keyboard out? Thanks.