It's a question I hate to ask, but is time Machine ready for prime time? I allowed a 10.5.4 update to run recently and the result was 6 kernel panics in rapid succession. Luckily, I noticed that just before the kernel panic, I would see the time machine arrow starting to spin. I turned off time machine and the kernel panics stopped. I decided to call Apple. Here is what they told me. I had set my machine to sleep while I was out of town for 2 weeks. Time Machine does not work well over wifi if you allow your machine to sleep. WHAT?!? How could anything be designed so poorly it can't handle sleep? But wait, it gets better. Next the Apple tech suggested I drag my sparsebundle to disk utility. (the sparsebudnle is target time machine volume located on a 500gig time capsule) Disk Utility failed to repair it. Ok, so what you're saying is I gotta delete all my backups for backup to start working again?!? I connected a usb drive and did a quick TM backup to that before deleting my motherload of months of backups. After deletion, TM started working again. This time over gigabit ethernet. No more kernel panics. After about a week, I went back to using wifi, but sleep is disabled. Then a new problem started. I noticed that none of the 3 machines I have backing up could actually complete a backup. It would always fail. So I searched Apple's forums and found you have to restart your Time Capsule and the backups start working again. Wait a minute. Restart TC to get something working? What is this, DOS? Anybody else have issues like this? I haven't seen Time Machine on the list of any System Update fixes since my problems began. Apple has gotta fix this or they could get dragged through the mud over this. The first time somebody's Macbook crashes and they head home to do a restore only to find a "corrupt sparsebundle" I'm sure we will all be reading about it in the forums. For now, I'm in the market for a backup backup solution.