I installed Logonstudio...And then I choose a logon to apply. Suddenly, it said "parser message - value creation failed in line XXX(I forgot the number). And then I uninstall my logonstudio....I still couldn't turn off my computer..even sleeping mode or any kind of mode....What am I supposed to do? Plz help me.. I use window XP SP2.. Right now...The only way I can turn off my computer is push the power button...