Thanks for your suggestion. I have cable so I am connected to the Internet whenever the computer is on. I do have iTunes and also Sound Jam and Audion, I tried your suggestion , but it did not work, the one thing that did change is that the cursor arrow did not change into a watch, but my iMac still froze,I could move the cursor around, but nothing worked. One thing I have noticed is that apparently when I put an audio CD in the CD tray it does not spin,and will not mount on the desktop like if it was not working, however a CD with files etc. will work although I have noticed it makes less noise ( humming) than before. Will appreciate any suggestions from anyone.