Intermittant connections with TT

[islandman]

I have a problem almost everytime I try to connect (via Talktalk).

Once the power is on, within moments both green lights on the Speedtouch modem are constant, so one must assume it aint TT's fault.

My desktop icons appear & once the egg timer has gone I clic on the TT icon.

Connection fails. > Diagnose my Connection > Windows is Shutting Down (but it never does, I have to turn power off & on) >sometimes Blue screen >

Desktop icons re-appear > Assist & Go >Dialing TT> Get Connected> error 680>error 680>error 680>Diagnosing System> You will need to contact TT.

I sometimes have to do this several times, 8 being maximum before I get connected.

Any comments. I had wondered if my 5/6yr old machine should be replaced, but if it's simply a case of me having done something wrong, then with help, maybe this could be rectified.

It has been suggested elsewhere that the drivers need to be updated and that I should reinstall everything. But being NON-technically minded, I'm reluctant to do anything should I create a bigger problem.