I have this theory, my wifi signal in Windows 7 is very poor, I tested in Ubuntu and it gets a really good signal.
In Windows I use a Virtual wifi miniport adapter to make a wifi hotspot. I read somewhere that doing this the overall power of the wifi card is divided by the 2 connections.
It is possible that I'm getting a crappy connection to my router because of this? If so, do you know how to disable it? Because although I can disable the Microsoft Virtual Wifi Miniport Adapter, I have no idea of how uninstall it. I read it comes with the drivers?
Also the wifi card is an Atheros AR5007G and is a PCI in a desktop.