Hey guys...I've been having trouble with my Powermac G4 MDD Dual 1 GHz. The problem is that sometimes it just sudden freezes and stops working. The mouse moves and if I have iTunes open the music continues to play through USB speakers (haman/kardon). I've ran Disk Utilities several times but it doesn't seem to help. Could it be something wrong with my hardware --> HD? The other non-stock hardware I have on is a Bluetooth Adapter and a Linksys 54G Wireless PCI card. But I've tried taking it out and it still does it. Sometimes it'll work fine. Sometimes it will freeze. theres a 1:2 ratio that it will freeze. Any help?