Imagine you work in Office 2007 or 2010, you create a far-fetched presentation and save it as 'ppt'. Office 2007/2010 warns you that some effects will be lost, but you save it.
Question: If you open that ppt file in the office version you're working with(2007/2010) will it run like on '97 or '03 with the lack of effects, no other problems?
I'm asking so I know whether I have to install an older office so I can check compatibility.I use 2010.
Thanks in advance