I've disabled the Raid once before for the same reason. Just went back there just now (under Integrated Peripherals) and I'd been looking at the line below that said ATA/RAID. I changed Enabled to Disabled and got it done.
Don't know if the Keyboard/Mouse thing had any effect but the computer is shutting off so won't question it.
The place where I bought all the stuff for this computer is quite large and wholesales as well. I even had it in over a month ago and they were baffled. All the stuff is on mfr.'s warranty so they didn't charge me, but they couldn't cure my problem either.
The day I bought everything last September, I got a 40G HD with some bad sectors, defective round cables and a defective AMD Palomino 1600+ processer. That was the start of my problem with the computer not shutting off. Maxtor sent me another HD, the store gave me a credit for the cables and I'm using the flat ones that came with the Gigabyte MBoard and I bought an AMD 2400+ Processer. I sorted out the bad stuff by the elimination process, a lot of work and some expense.
Anyway I'd like to thank you guys for all the help, I appreciate it.