Windows Live Messenger (WLM) does not work

[i noe some stuff]

Hi, I was wondering if anyone else was having this problem. Today I ran CCleaner 2.03.522 (MSN messenger is checked) and also a registry scan and now WLM doesnt start. I can see that it has started using task manager but it WLM doesnt show up unless i disconnect from the internet. also, it freezes when someone talks to me. I've ran CCleaner before but today i did a registry scan, naturally, i backed up the keys removed but i choose the keys to remove and they were mostly unnessesary file types.

 

I have no virus/spyware, system specs:

winXP pro

Codomo firewall

Nod32 AV

WLM 8.5 BETA (this also happened on one of my other computers running WLM 8.1)

 

can anyone help? i will be restoring the backup of the registry and restarting later today but i think it should be something else...