I tried to install Wireless Sync on Treo 600. It has a test function on the website installation to test that Wireless Sync can connect with your ISP. I have a cable broadband ISP POP3 account. WirelesSync can't get around the security settings and ports for this ISP. The set up only allows one different port address and no mention of SSL security. VZW tech help after much trying confirmed that Wireless Sync could not be used for this ISP. I installed Snappermail and it works perfectly. Is this true for all Cable broadband internet type ISPs - anyone else have this issue?