Originally posted by LinuxLala
i read somewhere that for best performance, all software shud be installed as root.
Thanks for your response.
Sorry, I have not explained clear in my first posting. I installed ThunderBird at
I only setup it to work as USER, because most unlikely I will not send emails as ROOT. I found the problem but without a solution. It is a file named 'XUL.mfasl' created at
on starting 'Thunderbird'. I met this problem several months before. This file was created after starting "Thunderbird" therefore I could not start it the second time. I could not recall how to fix it. But this time I even can't start it the first time.