Start *Windows'* safe mode with networking enabled - win8 http://windows.microsoft.com/en-us/windows-8/windows-startup-settings-safe-mode - win7 http://windows.microsoft.com/en-us/windows/start-computer-safe-mode#start-computer-safe-mode=windows-7 - XP http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/boot_failsafe.mspx

Still In Windows safe mode, start thunderbird in safe mode - http://support.mozillamessaging.com/en-US/kb/safe-mode

Does problem go away? Please reply to let us know results.

Hi winoldtimer.

Can you give us an update please? We'd like to understand and know your situation, even if you resolved it, so that we can better assist other users who may be seeing the same thing.

Thanks

There is not much else I can say. I am running an older version of Thurderbird, 17.0.8. If I let the system update to the lastest version or if I update to the latest version, the system locks up the instant I click on any area of the opened Thunderbird program.

I am having the same problem wtih Firefox. I am running V31. If I run 32 or any higher version, the instant I click on the browser, it locks up. I am running XP Pro.

This will be a few steps, so bear with me. 1. Using version 17, remove any addons you have installed at Tools | addons | extensions 2. Download Thunderbird 38 from https://www.mozilla.org/en-US/thunderbird/ and install. 3. start thunderbird 38 in safe mode - http://support.mozillamessaging.com/en-US/kb/safe-mode 4. visit Tools | options | advanced | general and disable hardware acceleration 5. restart Thunderbrd

Is it better?

I am in the middle of a project that is time critical. When finished I will try this solution and I will advise. It probabli will not be until Friday.

Thank you for you time.