Provide tools to fix as presently when i have a document attached in an email and want to adjust this PDF file, when try to open if does not open in a pdf file... This started a week ago, Adobe finally called, and after taking control of computer notice icon was wrong.. But emails still works and sends, composes, but just does not open in a pdf format . Which is terrible inefficient... When go to my computer programs the Mozilla thunderbird wave is clear and as always, but this is only spot, rest icon looks like a calculator , i thought you just changed your icon, did not realize was an error or a problem, Appreciate any insights or instructions as been very good service which i have enjoyed and become most pleased with Thunderbird's efficiencies. Thought i could drag icon that looks like a calculator but i was not..... Thanks for all your energies, review and good clear response with your instructions. Kindest regards, Greg Palmer <removed phone#>