Hi there, I'm new to the site and am having huge problems with my Mac. I've had a good look through loads of threads (and used Search) but haven't found a similar enough problem. I got it second hand on eBay and it worked fine for a while - general websurfing and wordprocessing - although sadly it seems too old/slow to run ProTools and an MBox2, which is what I wanted to do with it. I'd like to get it working again so I can either use it for web stuff or sell it to help fund a better machine so I can run PT on it. Thankfully, I'd been backing up my Mac using Time Machine before it went wrong so hopefully I can get back everything that was there... if it's fixable! System Details: PowerBook G4 15-inch Model no: A1138 1.67GHz 1Gb RAM (Originally 512Mb) 80Gb HDD Running on OS X 10.5.8 The initial problem started months ago when I got a kernel panic on startup "We are hanging here" screen that looked like this: I showed this pic to someone and they told me that it looked like the HDD had died but, being skint at the time, I couldn't afford to replace it so it sat there for quite a while until I could get a new drive. I finally got the money together, replaced the old drive but it hasn't cured the problem. I got a different screen but still a kernel panic, "We are hanging here": I've tried the following: reseating the RAM Booting with only one stick of RAM and in both slots (done this with both sticks) Boot in Safe Mode Booting from original CDs (OS X 10.2.7 and 10.3.3) Reset PRAM (hold CMD + OPT + P + R at startup) Reset NVRAM (hold CMD + OPT + N + V at startup) None of this has worked. When I got the kernel panic screens after installing the new drive, I went back to the old one as I figured that because it hadn't helped much the old one at least had the OS on it. Can anyone advise, please? Many thanks.