I have just acquired an Acer Iconia A210 tablet running Android 4.1.1. I have been trying to access my existing e mail account with TalkTalk but I keep getting a message saying "cannot connect to server". I have spoken to TalkTalk and everything I am doing is correct. They say it may be an issue with Android. Acer techies tell me that it is a software problem and to re-set the tablet and try again. I did, and it didn't. What can I do?