Hi splandservices,
Based on your description, I would like to confirm do they cannot see the pictures all the time or just sometime?
You can try to the following steps to troubleshoot the issue:
1. Please try to use other browsers to see if there is any improvement.
2. Please also check the picture size in the website.
3. You can try the steps in the following KB: http://support.microsoft.com/kb/283807
Thanks,
Anna Shi
