I cant sign into Windows Live Messenger

I've tried uninstalling and then downloading it again but it still wont work, i've tried other things that i've read on other Forums about it, i've checked my Firewall over and over and still nothing.

I get the 'Error 8100030d' message box, both on WLM and MSN 7.5, at first it was just my main email address, my other addresses would work, but since earlier today, none of my email addresses work so i've been stuck using the normal Windows Messenger.

Last week I was getting a different Error Code and I got told to do something in the system32 file and it worked, but since yesterday i've been getting this Error and nothing I do will work.

Help please.

Try looking at here: Error Code 8100030d

I aint going to disable my Firewall because I need it obviously, i've checked all the options on there for WLM and 7.5, allowed them and all that so it aint my Firewall...

and I aint using a beta version or anything, i've tried loads of things from uninstalling-installing, restarting my Laptop, trying different codes from people from other Forums etc.

can ne1 help then or not?

I disabled my ZoneAlarm Security Suite nd signed in nd it worked, so I enabled it and its still signed in but I cant see peoples display pics or view there webcams