I was wondering if any had experienced these problems before or knows what to do about them. First, my DVD drive seems to be defective. It's "arm" (or whatever you call it) will not "grab" the disks I try to feed it. It sometimes works, but most of the time does not. This is very annoying. Are there any knows issues with this, or any known solutions? (Note: My PowerBook is well out of warranty.) Next, the question. I was wondering if it was possible to upgrade the hard disk of the Titanium Powerbook, and where I would go to purchase the upgrade. 40GB sounded like a lot, but it seems I have to "clean house" quite frequently to keep a good amount free. Any ideas there?