Wrong root, absolute paths '~' don't work.

Hi guys,

I have some kind of strange problem. I use Visual Studio 2008 Standard Edition, and whenever I use ~ in links (like PostBackUrl = "~/Admin/AddProduct.aspx"),  ~ is translated into "C:\DocumentAndSettings\User\Desktop" instead of my application root. Of course I dont have any project on Desktop. It happens in every project I run , even in project from pendrive which works properly on other computers.
How can i solve this problem ? What and where should i change ? I will be very thankful for any help.


Michal 
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