Thanks for your reply,
As I noted I am using Eudora 6.2, Avast 4.6 on a windows box with XP updated with Sp1. I also have a SMC Barracade router.
When I ask for my mail to be downloaded there is no error message just no action. It says to hit PF1 for help and when I do it says there is no help available.
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First of all, it has nothing to do with your problem, but since you came in security related forum, you should know that it's highly recommended to update your OS with
SP2. Leaving your system non-patched is not the cleverest thing to do... If you still don't know why, use a SEARCH feature (button at the top of these pages).
Second thing, just as Technical said, I also believe that there is a bunch of Norton leftovers, and it means that most likely you didn't uninstall it properly. See what's exact version of your Norton Internet Security suite and search Symantec's site for appropriate uninstaller tool.
Third thing... since you are telling us this:
...It says to hit PF1 for help and when I do it says there is no help available...
Avast! didn't corrupt your Eudora program in any way... that means that something's wrong with Eudora itself as well. If it says you should press F1 for help, and then after pressing it, you don't get anything, means your Eudora is not working properly. Who knows... maybe it got damaged, nothing is impossible. So I suggest complete repair of Eudora or even better, uninstall and reinstall from the scratch. It will fix (replace) all Eudora files that maybe somehow got corrupted. DO NOT do that unles you are 100% sure you have all your e-mail account(s) information saved somewhere (login name, passwords, POP and SMTP server names etc.)
Since you said you had all those problems with Norton, even prior to installing avast!, I'm sure avast! has nothing to do with that problem... Also... you said this:
...I have since uninstalled Norton and installed Avast based on a recommendation from a friend. Avast has not helped!
You have to be avare that avast! is an antivirus, not a mail client fixing utility. It's main puropse is to protect your computer from incomming threats from out there. If your Eudora had that problem even before you installed avast!, you have to search for a problem inside the Eudora and you e-mail account settings. It may be that Norton somehow made your Eudora useless...
So, to make a long story short... do this:
1.) Completely uninstall Norton from your system... this time properly. Reboot your PC.
2.) Uninstall Eudora and make sure you have your e-mail account(s) information saved somewhere so you can set everything as it was before when you install Eudora again. Reboot again.
3.) Once you are 100% sure there are no Norton leftovers and your Eudora is gone from your system, install Eudora from the scratch.
4.) Install avast! properly
If you set your e-mail accounts properly, everything should work fine. Check to make sure you are using proper POP and SMTP server names (which are given to you by your mail provider).
Cheers !