I wonder if someone could help me, i'm desperate!! When i switch on my HP machine which has Windows XP everything comes up fine, then after a couple of mins my sound and firewall doesn't work, then my toolbar turns white?? I have windows defender, Mcafee and run various online scans, i have also downloaded Spybot and Windows AdvanceCare2, but none of these has cured the problem. Has anyone encountered a similar problem. Thanks