I've just set up my new pc and for some reason I can't log into msn hotmail and facebook ? everything else works fine but on facebook and hotmail I get to the screens to enter my password then click ok and it gives me the " the webpage is unavailable message " ?

I'm using XP and so far still using IE6 as I had a oad of troubles with IE7 on my last pc.

Has anyone got any ideas why its doing this or are those websites currently offline ?