Windows Live Mail dumps my server, who went from GMAIL to its own server

I have TDS.NET as my internet provider, they used GMAIL and switch to there own server. I have two e-mail accounts, one still on GMAIL. When ever I try to open my GMAIL account it resets my TDS e-mail account back to last e-mails I recieved when it was with GMAIL. I have to reset my TDS account to its new setting each time to view my new e-mails. TDS said its a problem with Windows Live Mail. I don't know what to think. If you have any suggestions I'd appreciate it. Thank you.