Vista - Blue Tooth

I purchased my laptop with blue tooth and when i got it it worked great. I
had to reinstall Vista because it kept going to a blue screen and rebooting
itself. (that problem for another day) Now, I can't find my blue tooth, and I
can't connect to the internet. I have a PC with wireless internet and that is
how I was connecting to the www with my laptop. I have reinstalled ALL cd
roms that came with the computer, but nothing has helped. Any suggestions
would be great.

Thanks