Just this morning, my HTC Hero won't open any web pages, I simply get the error message "Problem accessing mobile internet". I've tried Dolphin and the standard browser and I get the same message. I can get my GMail ok and tethering with the phone works (I've hooked it up to my NetBook and I can use the Hero as a modem to surf the web).

I'm on O2 and the problem isn't cell/location specific as I was getting the error at home this morning and now when I'm in work in the city centre.

Anyone else experiencing something similar?