C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\image002.jpg could not be opened, because the associated helper application does not exist. Change the association in your preferences.
Get the above when I try to open a jpg in an email. If I download it first, then open, no problem. Can't find association in Thunderbird's preferences.
Help get this topic noticed by sharing it on Twitter, Facebook, or email.