My son has bought a second hand G4 iMac. Last night we installed Panther, and then his Adobe CS. When he clicks on the icon for, say, Photoshop it bounces a few times in the dock then goes. I wonder if it's a user problem. When we installed Panther we changed the Admin password, but when we installed CS it would only accept the previous user name and password. If this is the problem can someone explain how to overcome it. Or any other reason it doesn't run. Thanks.