W540 and 2 apple thunderbolt displays

Hi
I have just brought a W540 with windows 8.
I am trying to connect two apple thunderbolt displays (daisy-chain) to the thunderbolt port on the W540.
The W540 can only detect one of the displays – anyone who knows how I can get both displays to work ?
In advance thank you

I'm not really familiar with the Thunderbolt implementation on the W540, so someone else will have to pitch in.
Does the display work properly with any other machines?
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

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