I had major problems today--had been doing a lot of video work with large internal drives and began having problems-- major slow downs, spinning beach ball, sluggish at everything, could not restart to primary drive. To make a long story short, I tried everything--Disk Warrior, Tech Tool Pro, etc with no success. I couldn't get anything to work right. I had decided that I had a bad HD on an ATA PCI card and that was the problem. I was all set to pull out the drives and go about the process of elimination to find the problem. Needless to say I was not looking forward to it when I noticed the clock was wrong. So I pulled an old Pram battery out of a 9600 and as you can guess all problems were gone. So reminder to all of what I have learned on the list many times. But this is my first experience with a bad battery. John in Tucson