My iMac G4 (with the angle poise screen) was a wonder. Just under two years old, of late it has got slower and slower with frequent sluggish periods, spinning wheel of death is a regular visitor to the desktop. Yet HD still has 19gigs free out of 80 - which ive read elsewhere should be ok. I did try updateing to Tiger recently in an attemp to remedy these problems. Just gave me a scary period of black screen with 80s liiking PC text! So now Internet is slow, mail slow, printer and scanner are misbehaving. Clearly it needs a drastic clean up. And possibly a rebuild somewhere. But i dont know where to start. Is there some way of diagnosing the problem? Failing that is there an agency in NY (that isnt Apple) who can come to my home and give it a look over?