xsane over ssh -X -- no devices available


I am trying to use xsane program over ssh with -X option.

Problem is if I login as normal user xsane does not see available devices. If I login as root than everything is ok.

What setting I should change to be able to use xsane as normal user over ssh.

I do not thing it is relevant for this problem but just for info I am using OpenSuse12.1.(64bit) and server OpenSuse11.3(32bit)