Well, i've been doing some work on OIS using the sourceforge compile farm. And, I realised there is some compatibility issues. First one, the Samples need to define -L/usr/X11R6/lib64 so that they link against libX11 that is 64 bit compatable.
Second issue, the console demo needs to clean up better when it fails to init an X Window.. I would fix this real quick but I got rid on my linux install here, and my other computer is away from me ATM. Plus, I would like to test more before I add an addtional lib path.. perhaps i should test for 64 bit build first, and either add one or the other.