First of all, welcome, George's son - can we call you BG for short? :)Can you give us a bit more info about your Mac - model (e.g. Powerbook, iMac G5), operating system (Tiger 10.4 Leopard 10.5, ) and if the freeze happens with any recognisable pattern, maybe with usually the same program running? That could help someone who recognises the problem from their own experience to provide some answers.... hopefully, before a week passes

yes you can call me BG, but i am of the female variety, george's daughter. first of all thankyou for responding to my sos. as you may have guessed i am somewhat of a beginner when it comes to Apple, but a keen learner. I am sure that the system i have is powermac G4 with OS X. there doesn't seem to be any pattern to the system freezing other than it mostly occurs when i am on the net, using BT broadband. it does however freeze when using other programmes such as word. The mouse cursor freezes and the colour wheel appears. i hope this may be of some help to solving the problem. many thanks BG