Safari and Get Info are the biggest culprits. I'm not at the machine right now but the issues appear as a lack of displayed graphics (white out or no objects in the window) or a general mass of garbled lines at a 45 degree angle.More proof that senility hasn't set in just yet. Thanks.
I'm sticking to 10.5.8 on the iMac until the issue is resolved or senility does set in.