This was working fine for me for quite some time. Now it seems there is a glitch today. I logged into my e-mail to see New Mail in the Inbox. But, I never go these on the BB. Could this just be a T-Mobile issue... or something I need to look into?

I have my 7105t setup to receive my Yahoo mail and I haven't had any problems with it. Have you tried logging in to your My T-mobile account (on PC) and go to Blackberry Internet Mail setup and resend service books? This might clear up the problem.

Wirelessly posted (BlackBerry7290/4.0.2 Profile/MIDP-2.0 Configuration/CLDC-1.1)

Yes. Resent service books and still was a no go. I did get test e-mails I sent out about 3 1/2 hours later. My gmail test came in right away. I'm guessing this is a Yahoo Mail issue. I'll just have to monitor it.

Wirelessly posted (BlackBerry7290/4.0.2 Profile/MIDP-2.0 Configuration/CLDC-1.1)

Meant to say I received the mail 3 1/2 hours later.

yeah, i'm having trouble with my yahoo small business email still...it's taking anywhere from about 15 minutes to 4 hours to get there...very inconsistent....I also tried resending service books, manually deleting them from my bb and readding the account at tmobile.com....still nothing....getting annoyed