Video Streaming Problems

Hi

I am having problems watching videos without the video stopping half way through (eg on Youtube and BBc Iplayer). It seems to buffer to start with but then when it reaches about a third of the full amount (for youtube) it stops buffering and doesn't do anything.

I had the problem on my old computer and assumed it was becaue the computer was rubbish, but I've just bought a fairly high spec new machine (2ghz Intel Core Duo and 4mb ram) and its no better. I've done a speed check on my internet connection and that's about 2000kbps download speed which should be ok shouldn't it?

Any suggestions would be great.

Thanks

Pete

What antivirus, antimalware software are you using?

I've got McAfee on it at the moment (the free 56 day trial thing you get with the laptop) but I bought Norton 360 to go on it after the trial period ends.

Does this make a difference?