Slow response when typing and/or pulling up new message
I do not have any Add-ons or extensions, so that is not the issue. I have a new computer running Windows 7, so I don't believe that is the issue either. But I have a lot of "hour-glass" time when typing and when clicking on emails to open the message. Is just seems to be responding slow. Is it Thunderbird ... or my computer?
ప్రత్యుత్తరాలన్నీ (1)
As for Thunderbird, the only relation I could see is in line spell checking. Could you please check your Thunderbird preferences, Composition, Spelling. Does it help to uncheck 'Enable spell check as you type'?
If not, I could imagine this to be related to a virus scanner, or a display driver that is not up to date. You might be able to get an update from it from the manufacturer of your video adapter.