Excuse my ignorance in this matter, but I am running avast! 4.6-603 at the same time as Norton 2003. What, if anything, am I risking by doing this and could this be contributing to the slow load times for websites (only when running web sheild).
Also, I’d like to know if there is a firewall recommended to use with avast!. Currently I’m using Zone Alarm. Is there one better?
Thanks for any input.
Hi a nd welcome
yes two antivirus is not better than one , naturally avast is gonna be our choice here but definitely remove one.
I also run zone alarm and find it ok . depends a lot on how well you know computing . Most of the other free firewalls are rule-based rather than application based like ZA which makes them more complex to run but also more secure. Za is fine for most though. 
Do you mean Norton Antivirus or Norton Firewall?
Sygate (free) is very good (excelent with avast).
Outpost (free) and Kerio (free) are good.
I just recently installed avast home 4.6. I’m also running Norton Firewall. Periodically I get an error message from avast saying it can’t connect to network.
"cannot connect to download26.avast.com [unknow:80:]
If I stop Norton Firewall and choose updates from avast, it connects fine. How do I get Norton Firewall and Avast to not have a conflict
Ensure that avast.setup is allowed internet access it is being blocked.
If there is already an entry for avast.setup listed there, delete the entry, boot and then update again.
This should force Norton Firewall to ask you for permition again 