10.4.11 on Core 2 Duo wrecks PowerPoint

this popped up in a seemingly random smatter until I noted specific chips. Issue: under 10.4.11 powerpoint works fine to open/create/edit/save/print slides but cannot view them in slideshow mode. In fact anything having to do with the slideshow, such as fades, causes the screen to go black and powerpoint to crash. At first I connected it to 10.4.11 only, then I realized it was 10.4.11 combined with intel macs and finally I noticed it only happened on core 2 duo chips. The report it send to apple says it is a kernel access violation. I have tried everything I can think of from the office side of things to no avail: removing prefs, re-running first run, ripping the program out with all files removed and then reinstalling re-updating (with a test between each update) running as a different user running as root and for the heck of it running applejack. If anyone comes across a fix, I would love to know it, in the mean time avoid this update (a little late for a notice) if you need powerpoint to do slideshows on a core 2 duo machine.