Hi, First of all, apologies if there is another thread on this. I have looked but could not find one. Over the years I have read many comments that Keynote is much better than PowerPoint but until recently I have not had the chance to use Keynote in earnest. I am semi-retired but do some teaching in a local college. I regularly use PowerPoint as we have PCs in the classrooms and for security reasons, it is not really possible to connect my own MacBook in place of the college computer. Recently I came upon a room where I could easily use my MacBook and decided to give Keynote a go. Preparing my presentation was fairly easy but when the time came for action and I connected to the data projector and tried to run my slideshow, I got an "insufficient video memory" message with advice to reduce the number of colours displayed. I changed it from "millions" to "thousands" but neither that or any other change I tried would get the show to run. Fortunately it was possible to export in PowerPoint format and use that program. I should say the keynote show runs perfectly on the MacBook when not connected. Now I have a May 2006 (1st generation) PowerBook with 2GB memory and about 100GB free HD space. The Keynote file is almost exactly 1MB in size. Have others met this response on a MacBook? Is this a consequence of the integrated graphics and limited video memory? Any comments or advice would be welcome. i would love to be able to demonstrate the superiority of Apple hardware and software.