Fujitsu-Siemens Amilo M1405 Not Detecting Wireless Card

Have an Fujitsu-Siemens Amilo M1405 and i'm trying to get it to connect to my wireless network, but i've realised that the laptop cant detect the wireless card (built in, apparently).

I've tried the wireless switch on the front of the laptop, but that doesn't have any effect, the wireless led doens't come on either. Have had a look in BIOS (which is incredibly simple, not many options) and can't see anything referring to wireless.

Have installed latest drivers from the Intel website, have tried installing old drivers from the CD that came with the laptop and still no luck. CD installation gives me an error about trying to uninstal

PCIVEN_8086&DEV_4220&SUBSYS_27028086

Have tried manually adding the device in the add/remove hardware section but this doesn't work either.

Any help is much appreciated, thanks.