No access to internet

Hello:

I can’t enter to Internet when Avast is running, but when I stop Avast i have Internet. I have try with Internet Explorer and Mozilla Firefox. I don’t have Firewall. My S.O. is XP prof.
thank you

Do you have any other programs installed (like internetfiltering software) ?

No I haven’t
thanks

Do you use the windows xp firewall and if so, is avast excluded ?

I have disabled the Xp firewall.

In Avast configuration “Web protection\basic” transparent scan http is 80. If I remove the port 80 I can access to Internet.

Please read this:
http://forum.avast.com/index.php?&topic=11702.0

Fast

Must I use a proxy software lilke Proxomitron to use Avast?

No, but it discusses a problem with webshield disabling internet, and the way to use the helpfiles.

Maybe this is of more help to you:
http://forum.avast.com/index.php?topic=12222.0

Thank you.
I’ll try to read slowly, is too mucvh information.

Another thing:

what is FF?

FireFox

Many, many thanks