Thanks for the replies.
Koshin: sorry, small black modem Ambit 256
Seph: High CPU use when playing the game and also on TS.
CPU is (single core) Athlon 64 3700 running at 2.4 ghz. Task manager shows mainly only these two using the CPU, (game 75%, TS3 22% approx) with an occasional 2% used by Windows Desktop Manager.
Been thinking of upgrading to the 30 meg package deal but if it's my PC where the problem lies there's no point until I sort it out.