I'm using Ubuntu 11.04 and I'm having a hard time while browsing the web. When for an example I'm trying to watch a movie on youtube, at the same time I can't access any other webpage - it's simply not loading. After when the youtube movie is done loading I can open other webpages. I used to have this problem on linux mint. I have solved it back then by changing drivers for my ethernet. But now while on the same machine I'm unable to find the drivers listed in the 'Additional Drivers'. What should I do now?
If this helps: 08:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe (rev 10)