Hi, I've run into some quite big problems with my 2009 13" MBP (8gb ram, 2.26 GHz, all updates installed). Today I noticed Safari wouldn't connect to websites that used the HTTPS protocol; I would just get a screen saying "Safari can't create a secure connection...." or something like that. Normal websites work fine. Then I noticed the iTunes store didn't work (probably because of the same problem that's causing secure websites not to work) But then it gets weird: iTunes also gives me several error messages about it not being able to save the library file (error code -50 if I remember correctly). And while this is all happening Disk Utility won't open either, it just bounces on the dock. Also just now I noticed Safari won't download anything. These are the problems I've run into at the moment, but I have a feeling more applications won't work either. The weird thing is all of the problems start acting up at the exact same time, without any particular trigger that I've noticed. When I restart my Mac everything goes back to normal: I can visit secure websites, I can open Disk Utility and fix permissions etc etc. But after half an hour or so the same problems come back. I've tried to repair Disk Permissions, reset Safari and restarted the MBP several times, but nothing works. I haven't done anything out of the ordinary with the MBP except for installing a Java update a few days ago. I thought that might be the cause and deleted Java completely, but still no luck; the same problems still persist. I couldn't find any similar problems on Google, and I really need help. Safari not visiting secure websites is a real pain, since Facebook, Google etc etc all use https. Thanks in advance!