Comodo Hangs (Not Responding) XP x64

I just installed Comodo on my XP x64 system.
After restart it did some updates, and when it finished
I opened Defence+ Settings. Now the program is not
responding. Ive tried to kill the prosess of Comodo in Task Manager to try to be able to restart it, but Im not
allowed to. Is there a way to kill the prosess, or do I have
to restart every time this happens?

Also: Where to report this problem, and what should be included…