Wifi Broadcom 4312 not working in Ubuntu after installing another system
I have following problem:
I have Broadcom 4312 wifi card and I installed Ubuntu 11.04 some time ago. After that I installed wifi STA driver via System > Administration > Aditional drivers. Everything was working fine.
Yesterday I installed Fedora 15 on another disk partition. I spent the whole day making the wifi work in fedora and I finally solved it by b43-fwcutter etc.
Today, I turned on Ubuntu and figured out that wireless is not working! I reinstalled the aditional drivers, reinstalled bcmwl-kernel-source, rebooted several times etc. But I still cant make the wireless working in ubuntu again.
Could anyone please give me any clues about my problem? Thank you in advance