Acer Extensa 5220 not seeing card reader

Absolute beginner here so please be gentle.

I managed to install Ubuntu 9.04 - the Jaunty Jackalope on my laptop and so far all has been well and really enjoying the linux experience. The only thing I can't do is get the card reader working on my laptop. When I insert a card nothing happens. I am using a XD card in the card reader.

How do I fix this?

Thank you

what is the output of lspci?

The relevant line in my Extensa 5220 reads:
0f:06.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD)

And my reader works ok (I am only reading standard SD cards, no Hi-speed)