I've been patient, hoping someone else would start talking about this, but I can't wait anymore....
I use a BlackBerry 9700 on T-Mobile in the US. I just now upgraded to OS 188.8.131.524. I had used both of the official T-Mobile versions of 5.0 (184.108.40.2064 & .538, If I Remember Correctly.) Ever since the infamous 2-day long outage of the BlackBerry Internet Service, things have never been the same for me. Since that time a month to a month & a half ago, there have been numerous issues, but the biggest of all is that I'm no longer able to maintain a proper connection to BIS!
Let me explain further... Whenever the BlackBerry 9700 is properly connected on T-Mobile's 3G network, I will see in the top right corner of the screen the usual signal strength meter, and just to the left of it, I will see "3G" with a BlackBerry "bullets" symbol (same as on the BlackBerry/Menu Key) next to it. This indicates that I am connected to 3G, and connected to the BlackBerry Internet Service, allowing all of my apps to function.
Except that now, what keeps happening numerous times each day, randomly, without warning, and for no good reason, is the BB "bullets" symbol disappears from the screen, indicating that I've lost my connection to BIS. I'm connected to T-Mo 3G, and non-BIS-dependent apps will still work, for example, the Opera Mini Browser. But if I try to use any BIS-dependent apps (i.e. email, BlackBerry Traffic, BB Messenger, AIM, Yahoo, Facebook) they fail to work, giving me error messages about a connection error.
Please, please, PLEASE, somebody, tell me you know what's going on! Tell me you're having this problem too! Upgrading or downgrading the OS has no effect on fixing it, I know, I've tried several times switching OS versions in the last couple weeks to try to fix some other glitches.
Just wondering what's going on.