My machine will not boot up properly.. I done a "tweaked" version of Black Viper' config. and now the machine wont boot to specs. It will only go to the screen before the "windows enter user password screen".. a blue screen with circling dots. but after it takes ten or so minutes I am able to mash all kind of keys to bring up the option to enter my password and all runs well.. what service did I change to cause this catastrophe?