remote connection

I’m starting here, even though this doesn’t seem to be a comodo tech support forum, as the other forums, don’t seem to have any participation, this is comodo 4.1 I’m using
I can’t connect to my winxp pc either remote desktop or ultravnc, windows firewall is off, opened ports for both remote desktop, and ultravnc http connection in comodo and my router, no block entries in comodo log, no error messages on remote computer, just the typical lame ms “can’t connect” and for ultravnc “server taking too long”
there is some other configuration in comodo other than opening port?