Unable to create socket,internet connection problem

I installed Comodo Firewall pro v. for 64bit vista and everything seemed fine, firefox and mirc worked and nod32 updated itself as usual,
When i turned on the computer the next day i was greeted with an error message concerning skype crashing when i booted and entered vista , i tried firefox but it only displayed a blank screen and i got the firefox error reporting window and a windows error message stating that firefox had stopped working, mirc couldn’t connect stating that it was unable to create socket, i also get the “stopped working” message when i close mirc.

I use a weather forecast gadget in vista sidebar and it is unaffected, it still reports the weather and the network and sharing center shows that i have an internet connection.

I uninstalled comodo fw but it didn’t fix the problem. i`ve also tried repairing,disableling the network and changing my network settings.

I log in as admin, no other firewall was installed, I forgot to turn off other apps during the installation of comodo fw, nod 32, mirc, firefox and quintessential player was running at the time.

Any help is greatly appreciated.

c2d 6300
4096gb pc6400
asus p5wdg2 ws pro bios 0805
3100/384 adsl