Recently I was prompted to upgrade the U3 application on my SanDisk U3 Cruzer to the latest version (currently U3 Launchpad Version 1,6,1,1). I did this on my laptop running WinXP Pro SP2. After upgrade, Thunderbird will no longer run on the laptop. Attempts to start it result in no activity. Other U3 programs (Firefox, for example) will launch and run OK. I can move my USB drive to my desktop, and it functions fine and Thunderbird runs. Unfortunately, I had Thunderbird running when I upgraded (yes, in hindsight, a weak moment.) I was wondering if there were any files that may have been "stranded" by the upgrade that is preventing Thunderbird from running. Thanks for any assistance.
And we dropped support for U3 some time ago so unfortunately you´re on your own. Its recommended to use the standard Mozilla Thunderbird, Portable Edition. There are several threads on how to get your data from the U3 to the normal version.
"What about Love?" - "Overrated. Biochemically no different than eating large quantities of chocolate." - Al Pacino in The Devils Advocate
I ran across those options while looking for a fix for my problem. Sounds like a better way to go. Looks like I've got another project for the next rainy day.