Thanks for the reply,
I have tried connecting by ethernet cable direct to the router before with no success but didn't try via just the modem as I thought it would be the same, after trying that however it works, youtube is playing fine.
What can I do to make it work wirelessly? the router I am using is a Linksys Wireless-G 2.4GHZ 54mbps model no. WRT54G.
Do I need a new router? and if so can someone recommend one that won't break the bank so to speak

Many thanks