If i receive a .ppt e-mail attachment, I cannot open it directly, but when I go into explorer file associations, all Powerpoint extensions are properly associated with Windows Power Point Viewer. If I go into Control Panel Default Programs,Powerpoint viewer is not even on the list.
I can work around it by saving the attachment into a new folder, then opening Power Point Viewer, then opening the the saved file.
I am using Microsoft Office Starter Edition. Is that the problem? I can download and install a new Powerpoint Viewer, but I hate to clutter up my computer when I already have the right program on hand!