E.M. Free PowerPoint Video Converter can help u convert PowerPoint to AVI,
easy-to-use, FREEWARE

http://www.effectmatrix.com/PowerPoi...-Converter.htm

.. One step to convert PowerPoint presentations to your iPod, PSP, Zune, 3GP
mobile phone(Nokia, Sony Ericsson, Motorola), Apple TV, iPhone, etc.
.. Convert and Burn PowerPoint file to DVD, SVCD, VCD and Audio CD.
.. Support the output video formats: AVI, MPEG, MPEG2 TS, MP4, WMV, 3GP, GIF,
H.264/MPEG-4 AVC, H.264/PSP AVC Video, MOV, SWF, FLV, etc..
.. Extract and Convert PowerPoint file audio to other popular audio formats,
like MP2, MP3, AC3, WMA, WAV, FLAC, M4A, OGG, AAC, AU, MMF etc..
.. Convert PowerPoint presentations to JPG, BMP, TAG, TIFF, PNG image