Mail not showing images

[haumana]

Hello All - I recently upgraded to Yosemite (from Mountain Lion). When I finished migrating everything and fired up Mail, I was surprised to find out that no images were being shown in my Mail Preview. I tried opening the mail and forwarding the mail, yet still no images. It was a clean installation since I'm also changing hard drives and didn't want to layer the OS's on one another.

- The emails are from different users from different email domains
- I am not using Little Snitch
- I've selecting the Display Remote Images (or whatever equivalent that is in Yosemite)
- I've unchecked the Obtain Settings Automatically option
- Restarted numerous times
- Effected existing and new incoming messages

I am at loss as what to do next. I even scrubbed and tried it with a clean install of Mavericks and it did the same thing.

Does anyone have an idea of how to fix this? I like Apple Mail and don't really want to change mail programs, but not seeing the images in the preview is going to make me crazy, not to mention, I think is pretty unacceptable, being as that feature really should work. For now, I'm back on my Mountain Lion HD so I can "see" all my email stuff.

Any guidance is appreciated.

MacPro 4,1 (Early 2009)
6GB RAM