Thanks for that input gentlemen, very informative. What has been bothering me is pages freezing, slowing to snail's pace and otherwise acting funny, when the place is deserted, so not a case of overload. This happens frequently at different places, which in itself seems a bit suspect to me. As I said initially, not likely to damage me financially, just never been fond of people mucking about with things they shouldn't. Re the comment about Poland, there was a similar thing in Slovakia...I remember a number doing the rounds in the late 90s which had some means to block STB ( Slovak KGB now calls itself SIS - Slovak Information Service) interference with mobiles.