These boards wont remeber me... I have to log in each time but it doesnt happen on other Invision boards, so why this one?

I'm not sure if you've got the answer to it yet, but I believe it has something to do with cookies on EWAC itself. Try logging in from here: http://s3.invisionfree.com/EWAC/index.php?act=idx instead of the shortcut link, and it shall work.

Hope that helps :)