Windows Vista vista home basic thumbnails on task bar

[VHB]

hi Ive got vista home basic and i just wanted to now if i can have the thumbnails pop up on the minimized screens on the task bar . Ive gone in to the properties and the option is there but i am unable to tick it help if you can

see links below if you don't now what i mean

http://www.howtogeek.com/wp-content/uploads/2007/07/image38.png
or
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