I have Vista on my pc and i use internet explorer 7. So im surfing around on the net and this happens about every 5 to 10 minutes or sometimes it can not happen for an hour or so. A box will come up explaining there is a problem of some sort an then another comes up sayin "connecting through wan miniport XXX" < thats not exact by the way

. and if i just leave it to get on with it nothing happens so everytime i have to close the 2 boxes and then another one comes up saying internet expliorer is set to offline so i just click the button that says connect and it works fine again.
i rang NTL and some guy came out but he was completely useless and just looked at my pc and said "nahh i cant do ewt mate" and i could tell he didnt have a clue what i was talking about. Anyone think of what the problem may be?