everytime i sit on skype for a long time this happens, Skype.exe has stopped working. so it shut it down in every possible way. But when i try start it again it wont log in. so i dedicided to restart my computer, but even tho i shut down skype 100% it still is running, wich makes my computer unable to shut down. then if i wait 4 hours i do get a bluescreen its that or using the power block button. And i hate using that one couse it makes you computer slow and just simply fuck up. anyone know anything about how to fix this?