Hello, New switcher here. I have an imac isight G5. I installed the software CD that came with the Treo 650. When I hotsync it, it starts to snyc, then this prompt comes up: The Hotsync operation was interrupted. Some of your data was NOT backed up. I will click on Show Report and one of the prompts say Unkown Syn Error  On the report it will say Memo Pad Did nothing. But when I open the Palm Desktop, my address book will be updated and my Memos are in there too. Also on my Treo as all this is going on, it is stuck on Synchronizing Voice Dial, and I have to take out the battery to reset the Treo. Sorry for the long post. Thanks.