Powerpoint 2003:Missing Images

Previously Posted but no answers yet. Update of Problem.
I have created 4 Chapters of Photo and Sound Images (460 Images in Each Chapter) using Powerpoint 2003. The problem I have is, when using Powerpoint 2003 to view the Presentations, about every 5th to 12th Image is missing on screen. Since this problem presented itself in Powerpoint, I also notice that Emailed PPSs miss some Images. This problem does not happen if I use Microsoft Powerpoint 2003 Viewer to view files outside of Powerpoint 2003 itself. I have also determined that the problem does not present itself when the same Presentation Files are run on other PCs or Laptops. In an effort to identify the cause of this problem I have tested with Graphics Accelleration both on and off and various settings for Accelleration. No improvement. I have changed out and increased DDR400 Memory to max of 4 Gb, I have performed a Windows Repair Install and Un-Installed Graphics Card Driver and Installed current version Driver 93.71, all to no avail, missing Images still persist. My PC specs: MB = Gigabyte GA-81PE775 Pro, CPU = Intel P4 3.0GHz, RAM = 4Gb DDR 400, Video = GeForce MX 4000 93.71 Driver, HDD = SATA 500Gb, OS = XP Pro SP2 + Updates, Application = Office 2003 SP3 + Updates, AVG AntiVirus and AVG AntiSpyWare.
Can anyone Please advise if my Hardware can be contributing to this problem in any way or any other pertinent information that may assist in resolving this problem. Thank You, Owen Carlton