A simple add-on should do the trick. Try one of these:

http://internet-filter-review.toptenreviews.com/?ttreng=1&ttrkey=internet+filter

This one is free:

http://www.k9webprotection.com/
...

It sounds to me like you have a spyware issue! Try logging into your computer via safe mode to see if IE works. To log into safe mode:

1)Repeatedly hit the f8 key while your computer is booting up...

I've never used spyware blaster, but it if works, it works!

Good luck!

ShaneMcP

I forgot to mention disabling your wireless connection and enabling it again (on the laptop that doesn't connect)

Although you may think it is just it probably isn't. Your neighbors, someone on the street, anyone going by with a wireless card can see your wireless signal, and connect to it. Once they are...

What operating systems do your other machines have? Do you encrypt your wireless? Do you have mac filtering? Is your wireless router password protected (besides the default)? If not then someone may...

Yes I do have ideas :D! Download Microsoft Anti-spyware! I have a feeling I'll be saying this a lot. If you don't like microsoft get Spybot and Adaware. They work well in conjunction, but MS...