I installed PDF to Go (along with Documents to Go) on Curve 8320 for a trial. Neither opens email attachments. Especially concerned about PDF to go as fax attachments are very difficult to read with the BB viewer. I did not see a way to instruct PDF to Go or DTG to open email attachments. I would greatly appreciate any help as I switch from Palm Treo to BB.
I just upgraded to OS and Docs to Go in the process. I did note on their web site that OS v4.5 or higher is required to be able to open file attachments using their apps. What OS is installed on your BB?