1. Back to your last good backup. Should be much less work to redo the changes since then to redo everything.
2. http://www.google.com/search?q=repair+powerpoint Beware, McAfee's siteadvisor is giving a lot of yellow and red exclamation marks on the first page already. That doesn't necessarily mean that everything you download is malware, of course, only that you should use something more than the usual precautions.
I have a ~31 MB PowerPoint talk for work. I updated it minimally and it opens in Slide Sorter view just fine and appears normal (ie, all slides show up appropriately). However, once open, I cannot save it, either immediately or after making additional changes. Every time I save it I get a dialog box that is defective: it shows the orange PowerPoint logo on the left, and the aqua blue action button on the right, but the rest of the box is blank. I presume the aqua blue button should say ?OK? or something, but it has not text in it. There is no text in the remainder of the box anywhere. If I click the aqua blue button PowerPoint either crashes or the box goes away and nothing happens. If I try ?Save As? PowerPoint always crashes. Weird. I have no idea what to do.
Issue occurs with same file on two different Macs.
Permissions are correct on the file (ie, I have ownership and can read and write).
Microsoft PowerPoint 2008 12.2.3
Apple OS 10.6.2
Hardware: 2.66 GHz Intel Core 2 Duo with 4 GB factory installed 1067 MHz DDR3
This file has a lot of work in it, and redoing the talk would be massive. Any suggestions as to how to fix this bug would be greatly appreciated. Thank you!