Forwarding Email To T-Mobile Sidekick II Phone. Hey, I have a Sidekick 2 phone, and I had

Question

Hey, I have a Sidekick 2 phone, and I had previously set up my gmail account to forward all emails to it, now it is telling me that it is having problems forwarding mail to the address.  I'm not sure why exactly one day it would work and the next it would not.  The sidekick email account still works fine if the email is sent directly to it. Anyone have any ideas?