Now have a Nexus 7 but this problem occurred with a low end tablet previously. When I have the Nexus setup to access my Charter email account it works perfectly with the standard email program. However, if the Nexus is turned on or in sleep mode, I can not access the account on my desktop. Error message says another device is accessing the account. If I go into apps on the Nexus and stop the email program from running, then I can access the email on the desktop. Is there a setting I have missed? Do I have to power down the Nexus to access my email?