unable to compile using boost

I am trying to compile using the boost libraries. I can't even compile the examples in the asio tutorial, i get a bunch of these errors:

asiotest.cpp:(.text+0x103): undefined reference to `boost::system::get_system_category()'

I have tried with packages supplied by ubuntu, i tried it in dedian and it's the same. I also tried downloading and installing the libraries from www.boost.org and i tried adding a -I and -L path/to/boost. I always get the same error and compilation fails.

Can someone help me out?

(I suppose someone will ask so: i'm using karmic beta amd64, it didn't work on jaunty either)