Windows Vista Business Edition. I've been having lots of problems with it regarding internet.

I've got access to a wired and a wireless network at home. I also have a localhost server on my computer which I access through localhost (127.0.0.1). Now, sometimes I'm using the internet and it stops working for no reason. It can happen while using the wired or wireless network, it doesn't matter. It just stops working.

Fun facts:

• If something like a file download or a MSN Messenger session is on while the problem occurs, the file and/or msn session still work (though slower and/or with major problems).
• If I'm using the wired connection when it gets screwed up and then try to get wireless connection, it still doesn't work.
• I have no access to my localhost (404'd).
• Of course, all browsers and network-capable applications stop working when this happens.

Rebooting solves the problem, but it's annoying as hell.

While I'm at it, I might add that I have avast free home edition antivirus, I installed xampp to get php, MySQL and Apache and Windows firewall turned off (those are the programms I have that I think may be causing a problem).