<p>I have checked the source, and the PPT tab is greyed out when an error occurs during the startup of PPT from openlp. Unfortunately, this will most likely be quite a technical issue to resolve since the software component we use 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>