I am using the latest version of Thunderbird Portable (3.0.3)on a USB Flash Drive. This evening - I suddenly was unable to reply to a message. The cursor will not show in the body and the original message no longer shows. I also was unable to write a new message - again the cursor will not show in the body. I have not installed any new themes, plugins. I reinstalled Thunderbird (I did not uninstall the old (3.0.3) version first?) - I was able to write one test Email and then the problem started again. I do not know how to get the Portable version to run in safe mode.
I have searched using Google and looked at the Mozilla forums but I am unable to solve the problem. I see this has been a problem with Thunderbird but I didn't find any real answers.
Thanks kindly for your help.
Gail