What do you mean?? Messages? Windows in your web browser or the danasoft logo's in peeps signatures? Or windows on your desktop???
Get yourself a good firewall (if you haven't already got one), ZoneAlarm will do a treat & it's free, then visit GRC HERE and run the shields up test, take the advice it gives & you might also want to get the "Shoot The Messenger" thingy too...Might be an idea to run the 'Leak Test' too.
I'd also recommend some spyware/adware removal tools too, Spybot S&D, Adaware or even the MicroShaft one.