Hi. I am having several problems with my macbook pro classic. Im running 10.6.1. When i start the computer and the grey screen comes up with the apple logo etc., a grey "loading" bar has started appearing in the bottom of the screen. Takes a few minutes for it to go away. In the meantime the computer gets very hot and the fans are up to 6000 rpm. Then the os starts up, and I cannot download anything, due to the fact that it thinks my harddrive is full, though i have more than 100 gb of free space. I cannot open word because it says im out of memory. A quick look in istat pro will tell me that i have 1,33 gb of free memory available. Every task that requires memory gives me an error.. This morning i tried installing the 10.6.2 but i failed halfway through. then the memory issues started. I cant even download the 10.6.2 now due to the harddrive appears to be full.. Backup and reinstall, only option?