Yeah, it worked fine for me too for about 2 or three days, then I had to reset all the network settings again and again. It seemed to do it once I went into Wifi mode, and the 3g data turned off and then back on again while I was in Wifi mode. Then left wifi to use 3g and then I would get ":server not found" on opera or depending on what app I was using. Glad to hear it's working for you.
