<p>Check the forums for others running OpenLP 1.2 on Windows 7, I think some folks had similar problems and had a workaround. I myself don't use Windows, so I'm afraid I can't help you further.</p>
<p>As for PowerPoint 2007, unfortunately, this is quite a big technical issue to resolve, since the software component used in 1.2 only caters for PPT up to XP. Once again, this will be a feature released with V2 as the V1.2 line is now frozen and only minor bugfixes will be released.</p>