I'm using a 24" iMac with all the bells & whistles. It is accessing the 'net through a Linksys router--hard-wired. Also on the router is a Mini G4. From the Mini, I can access the iTunes store but on the iMac it won't load. No error messages, nothing. It just can't access the store. I've let it try for more than 20 min. No success. ApppleCare had me completely delete and then download iTunes again. I was able to access the store exactly once. After that, same old problem. Anyone else seen this? Apple seems to be baffled--all the way from Bangalore, India!