rick7 wrote:Since I switched to running Thunderbird in XP compatibility mode, I'm not getting the "Not responding" error but I think that's only because that specific error message only came into being with Windows 7!
I don't think so.
rick7 wrote:I think Thunderbird is still freezing and not responding but it just isn't telling me this in so many words.
You would notice, because you would not be able to do anything in thunderbird while it is frozen.
rick7 wrote:I'll try disabling some aspects of McAfee as suggested in one of the referenced articles and see if that makes a difference. I have a feeling it will.
Please tell us.