Installed Win XP streamlined SP2 on parents computer on 23rd Dec. Today I noticed that the desktop has sort of frozen twice today - in that I can click on icons etc, but nothing will happen - I can click on icons, but double clicking on them has just the same effect as single clicking on them. Also I can look at the start menu, but I can navigate no further... No error messages/BSOD etc. The only way to reset this is to reboot the computer. Obviously it's a small problem but as my parents always phone me when things go wrong as I'm at home I was wondering if I could "nip it in the bud" as it were. Any ideas please?