Ubuntu Networking :: Two Different WiFi Drivers?

when i go into additional drivers, only two drivers pop up, both for my wireless card. however, i can only use the first one because if i try to use them both it breaks my wifi, forcing me to reinstall the first driver. ordinarily, this wouldnt bother me because it works with just one, but i realized the other day that the reason it takes forever to do anything internet related is because im getting pathetic transfer speeds. the highest i can remember is only 800 kb/s. ive tried standing right next to the router and it makes no difference. i know its my drivers fault because i get the same speeds at two different home wifi networks (both houses roughly the same size). my ipod gets a better connection. the driver im using is a broadcom b43 proprietary driver. the one that breaks the working driver is a broadcom STA proprietary driver. i havent bothered to try the second without the first because i just didnt think about it, but i think i will soon and see if it makes any difference. does anyone have an idea as to why my driver sucks? im tired of waiting 20 minutes to watch a 3 minute ..... video.