Hi everyone, I have a MacBook Pro since september, which came with 10.6.3 installed. It worked perfect. Last Nov 20th I updated to 10.6.5 (from the automatic software update manager) and everything more or less ok, except for my SD Card slot which stopped reading any card. I have checked it is not a card problem. I tried installing the 10.6.5Update Combo and it didn't work. I tried resetting the System Management Controller and nothing changed, nor any other method I've found on the web. I would like to know if it is known a concrete fixing of this issue; otherwise I think the best thing to do is to downgrade back to 10.6.3, which was the originally installed Snow Leopard version. I appreciate a lot any help!!