I have the firewall that came with my windows xp. I want a better one. What is a VERY good firewall i can download and use for free that dosen't slow down my computer? :(

Why is my computer so slow? It is driving me crazy. It seems to get slower every day.

I just got a wireless network card for my computer and I cannot connect to my wireless hub. I know the hub is configured and working correctly. I know the SSID and the encryption key. I can see the network in the browse list but when I try to connect I get an error message that I do not have access to the wireless network.

Other computers are connected to this wireless hub. What's up?

I have been using Firefox for a while and I installed an updated version today and now it will not always work. Sometimes it works fine. Sometimes it will not load. When I close it I usually have to "end task" before I can open it again. I have tried uninstalling it and reinsalling it and I still have the same problem. What can I do to get it working again?