(To check if this card is in your system type 'lspci')
After installing Ubuntu 11.04 Natty Narwhal it seems to work but after a reboot the connection cannot be made or the system tries to reconnect every minute or so.
Installing 'wifi radar' helps (Dont know why.) but the connection is not stable.
The solution is to add 2 lines to: /etc/modprobe.d/blacklist.conf
blacklist rt2800pci
blacklist rt2x00pci
Do a reboot and 11.04 is fine.
After upgrading to Ubuntu 11.10 the network is again gone.
The solution is to add the following line to: /etc/modules
rt2800pci
Do a reboot and 11.10 is fine again for about six months.
