What's up with this thing? It's so flakey, it's unreal. Sometimes I see the disk, sometimes I don't. I thought I had the problem traced to an IP address conflict but I was wrong. And when I finally see a disk, I get the dreaded "Original item cannot be found" error message. Does anyone have Airport Disk working 100%? Do I have to re-format my disk to get it to work? This is the only reason I bought an Airport Extreme Base Station and I'm about to give up on it. BTW, I've tried two different external drives - a Nexstar and a WD MyBook.