using road runner email on multiple devices


New Email
I have a nook, an iphone, and a desktop computer. If I open an email or delete one on one device, it still shows new or not deleted on the other devices. I'm constantly deleting the same emails whenever I go from one device to another. I've heard it's a roadrunner email problem and that I need to switch to another provider. Please help, I was hoping I wouldn't have to switch.