Hi, i've got the same problem and had it since i joined 20 days ago, it happen's with any internet program the uses a "keep alive connection" (this effects gaming, streaming, downloading, msn and skype) i can't even use parts of facebook ffs. I've spent hours on the phone with them trying various things, got a new modem and router, the engineer's been out found my signal was too high, fixed that but he problem still persist's. Its turned the internet from something i enjoyed in a major headache

Virgin has given up saying it has to be my comp cos their system says everythings ok their end (yet it happens on all my systems plus our phones and the wii) and the problem is unique to me. After seaching the net i've found loads of people to have the same problem but no one has posted how they fixed it?
Can anyone please help