Has anyone else had recurring error messages that say mail cannot be downloaded due to settings even after mail was downloaded. I get this message on a regular basis after I hit send and receive. This is my 3rd unit after countless phone calls and visits to Verizon store, this unit worked fine for 3 days before having this problem. I have done resets, deleted the account etc. I use this method with POP account because it allows me to separate my work and home e-mails on this unit.