Woody,
Not sure if this will help but I saved the pics from the threads Poser linked to as I see them to show you. I noticed something while saving the pics....
All of the pics that only partially load appear to be bitmap (.bmp) files while all of the pics that fully load appear to be JPEGs (.jpg or .jpeg). All appear to be pictures that were uploaded to IH8MUD. Odd, because I don't see .bmp files as a choice of file fomat for uploading

in MUD. Looking at the pics it almost appears that only the part of the picture that doesn't exceed the max file size for a .jpg pic is what gets loaded
I converted the bitmap pics to jpegs 'cuz MUD won't let me upload bitmap pics ;p - To get them all in this thread I uploaded them to Photobucket (hope that is ok for this purpose) in the order from the threads as I see them - I put the original file size and format of the pic in the description for each.
Win XP Pro SP3, IE 8.0.6001.18702, Linksys WUSB54G router, Norton 360 (2009 v3.8.0.41) for firewall and filtering
As mentioned before, this started recently (within the last 1-2 months) and AFAIK nothing on my end has changed other than any number of Microsoft updates
Pics...
Example 1 - 1.37MB .bmp
Example 2 - 111KB JPG
Example 3 - 729KB .bmp
Example 4 - 729KB .bmp
Example 5 - 139KB JPG
Example 6 - 89.2KB JPG
Example 7 - 1.32MB .bmp
Example 8 - 137KB JPG