All very odd. The weather. And stocks use different urls and its possible that t-mo is suddenly stripping something out. I'm sitting in front of my t-mob BlackBerry and have it set to wap and its working fine...same apn as you. Not sure what to do next...thinking.
For what it's worth my issue is not resolved, but Tirsch was more than patient with my frustration and tried diligently to help me resolve the issue. Given the good value in purchasing this product, this level of support is more than what I would have anticipated. Thanks Mark!