I assume you're using Comcast's "webmail" site and that's where the problem occurs.. If such things aren't happening on any other websites and it's not happening when using other e-mail clients, then it's probably Comcast's site that isn't working correctly. Try contacting them and see if they are aware of the problem and possibly a way to fix it on their end.
Hope this helps.
I use Comcast email (not Outlook or OE) and when starting to type the body of a new email I get maybe 4 keystrokes into my message when the message jumps fields and finishes in the To: line. This is an intermittent problem - it happens regularly but not always. I am baffled. What can possibly be doing that and how do I make it stop?
I'm on a Dell 4600 Windows XP. I prefer the security of Comcast email but my pc is configured to allow Outlook, I just choose not to use it for my purposes. This problem is fairly new - maybe the last 6 months -it didn't always occur.