Ditto to stevie21`s reply but taking it a step further, if this has only been occurring for the last 3 days it is probably a programme that you have installed 3 days ago or one whose settings you have altered 3 days ago.If you are totally unable to trace the culprit, alter your connection settings to read `never dial a connection' which will stop it happening but means that you will need to manually log on to the internet instead of it automatically connecting each time you open your web browser/e-mail programme.