When my dad got this PowerBook G4, it came with 1Gb of ram. Later, he bought 2Gb (2x1Gb) and put it in. It locked up all the time. I'm not sure on the specifics. Anyway, he took it out before they came out with the AirPort update, so when I got it, I put the 2Gb back in, thinking that the AirPort update would fix the lockups (It was supposed to fix some problem with having more than 1Gb). It didn't work. Now, every night, while I play my music to help me go to sleep (AC/DC + Fast Car = Fast Asleep), it locks up, making a ch, ch, ch, ch... sound that wakes me up. When this happens, nothing short of holding down the power button will work. Also, sometimes my Bluetooth Mighty Mouse loses the connection for no reason (while I'm moving it). When I go up to the Bluetooth menu, it pops up with its "You need to restart your computer" message. Sometimes, it just freezes. None of this happened before I put the 2Gb in. I've searched all over the place for answers. Is the only way to fix this to take out the ram and switch it?