Ｌａｓｔ month, I found my laptop worked strange somehow and had it repaird on Octorber 27.
It came back to me on November 13, but there are so many steps to make it work fine again.

I had my husband connected my laptop to the Internet.
He is so good at computing that he can handle wireless LAN system by himself.
It took several days for him to set up Internet connection on my Vista laptop, for he is used to XP computers.
Now, only the Internet is available on my laptop.
Applying an anti-virus software, the printer driver, and various kinds of softwares I have used is waiting for me.
I must install an anti-virus software and the printer driver quickly!!