Droider29,
I had the same results as you -- cannot open attachments in the standard Droid email app, not even with the full version of DocumentsToGo (I doubt that bbcrackman is doing it with the non-Gmail email app -- if he/she is, I'd love to know how). But the answer for me was to to stop using the built-in email app and start using K9. Not being able to view attachments in a non-Gmail account was a show-stopper/deal-killer for me -- the Droid was going back! Fortunately, K9 solves the problem. K9 is an experimental fork of the core Android POP/IMAP email client (free download available in the Android Market -- shows up as the only app when you search for K9). I installed it and set it up with two private domain (non-Gmail) email accounts -- works great! On each attachment, there's an Open button and a Save button. The Open button launches whatever viewer you have, such as the built-in Quickoffice or the far superior DocumentsToGo. The Save button puts it on the SD card. It doesn't give you a choice of folder (it puts the file in the root of the SD card), but I can live with that. You can then pull it up from the SD card with a file manager (like Astro or ES) and load it with Quickoffice, DocsToGo, etc. -- very nice! Regards, Joe