What happens when you try?
What is your OS?
What is your Adobe Reader version?
Windows XP, Adobe 9.3.
With Xcel or Word attachments, says to upgrade setting in Microsoft
Office Professional Plus. Then goes through update process and says it
needs to reboot system. I do that and the same issue exists when I try
to open attachments again.
With pdf, an error box comes up saying an Adobe error has occurred. I
have uninstalled and reinstalled Adobe per the instructions and have
sent MS error reports multiple times. No resolution to problem.
Is within Thunderbird because I have another e-mail which opens things
fine and I can open Adobe and Office through my desktop also with no