Wireless driver not working for WPA after update to 12.10

I updated from 12.04(All working) to 12.10 last night and unable to get the wireless driver working properly. It seems to work with no wireless security, but not with WPA. I have tried with other wireless devices and all seems ok.

The laptop is a ASUS X53Z. When I run the following

lspci -nn

I get the following output

03:00.0 Network controller [0280]: Atheros Communications Inc. AR9485 Wireless Network Adapter [168c:0032] (rev 01)

Hope someone can please help???