kum du duck, fixing Dr, Chan'a association PC

Anything can happened. Went back to HK Wednesday night, meeting tomorrow.
Dr. Chan call just enter the apt and needs help for his association's seminar.
Didn't really fix anything but interesting enough, after installing anti-virus, the pc become more stable. It seems to be a hardware memory problem with the VGA card.
Well, it is the first 500 bucks for my skills.