Mar1

I'm new at this (or any other) forum so please forgive any lack of knowledge or information. I was unable to open powerpoint attachments to incoming e-mail. I saw somewhere that I could change my computer settings from "open" powerpoint to "show" which I did. Now, I can open the slide show from email but can't open the attachment as a powerpoint document where I can change slides, add slides, etc. Any thoughts?