Gary, The largest DSL provider in Canada is Bell-Sympatico and they have a business partnership with MSN. Their version of Premium is solely for PCs. They offer no real Mac support, even though Macs do function on their system. However I dropped their service because they were too PC centric and I could never get a straight answer from them. I do know that MSN can be very proprietary about their servers. However I do believe that Firefox for Macs works on their servers. I know you wrote that you tried Mozilla, but have you tried Firefox? The tricky part with these ISPs is getting honest and /or informed information about Mac support from their tech people. Good luck, Bill