Firstly let me tell you that i am using a Power Mc G4 Dual 867 - Mac OSX 10.4.11 I was watching a dvd on my computer when it crashed and stuck, the whole computer froze and I couldnt do anything. Even Force Quitting wouldnt work so i had to switch off using the power button. When i restarted the machine everything looked fine, but after a while i noticed that the icons would dissapear for 1sec and then come back again. Now continuosly this keeps happening so clearly some thing has gone wrong somewhere. IF ANYONE CAN SUCCESFULLY ADVISE ME ON HOW TO CORRECT THIS - THEY WILL RECEIVE A DECENT REWARD ! 07778 157 112 ADRIAN.