I can't download powerpoint files from emails on my ipad
I can see the powerpoint file in the email, but it won't download. Same for ppt and ppx files. I've downloaded keynote, but no change. It's a new thing as I have downloaded ppt files in the past. Size doesn't appear to be an issue as I can't open a 'single slide' attachment either. When you tap on the file, it thinks about it for a while and then nothing happens. Can anyone help? I tried the Apple store, but they can't. Am at a loss.
iPad, iOS 5.0.1