I updated to ubuntu 10.10 64bit recently, and found wireless didn't work any more like it does in 32bit.
after updating r8192e_pci.ko, it works again!
It's sad that I couldn't find updated driver in realtek's official page, luckily I found one via google (thanks, johnfoshay!)
I also attached it here just in case.
here is what I did:
- tar xvfz rtl8192e_linux_2.6.0014.0401.2010.tar.gz
- cd rtl8192e_linux_2.6.0014.0401.2010
- sudo cp HAL/rtl8192/r8192e_pci.ko /lib/modules/`uname -r`/kernel/drivers/staging/rtl8192e/
Good luck to you too!