Hi, Ive installed Win 7 about 3 wks ago.. I LOVE IT.. it goez smoothee and fast.. but theres just one thing that is bothering me.. Sumtimes while starting up, i get a blue screen error.. but the error code i have not taken down.. but the text is often diferent.. one which i remember is Driver IRQL not less ot equal.. i dont understand it cums may be once in 3-4 startups.. after it comes, i restart my laptop and it starts up.. :S not sure wats happening.. im using laptop HP Pavillion DV7 with AMD Turion 64 x2, 3 GB ram, ATI Mobility HD3450 graphics card.. Although itz not a big problem as right now also i am typing this on my same laptop and same win 7... it started up properly this time.. but i am worried if it kept on happening for long ( i mean i hav to restart again and again) it will leave a bad sector on my hdd.. I was and still am suspecting problem with my USB bluetooth dongle.. coz even after win starts, it gives a driver error for the bluetooth dongle and it does not work.. however i tried removing it and restarting but still the error came:S i am unable to diagnose the problem.. please help coz i dun wanna remove win 7 just coz of this stupid problem! i like win 7 a lot and am happy i got rid of that bloody vista! thanx in advance!