Double click on My Computer
& go to Tools > Folder Options
, click on the File Types
tab, scroll down until you find PDF
then click on it once to highlight it & check in Details right below it to see what it's set to open with. Click the Change
button & select Acrobat from the list & make sure there's a checkmark next to Always Use selected program
. If Adobe is selcted you could try going to the Thunderbird Forums
& submit a bug & see if they can help.
Edited by hillbillygreek, 19 November 2008 - 01:32 AM.