Joomla Software Template

First off, I'd like to say that this is a great module!
I've just installed it and for some reason after configuring the module, creating the upload_slides folder, uploading the images, and setting them up in the backend; some images do show but others don't. I have tried changing the image name, made sure they are all jpg files and tried to keep the names short. After doing all that I still get 3/5 images to show.
I'd appreciate any ideas or comments

Sorry, figured out what it was those 2 pictures werent in RBG and that is why they weren't showing.

Thanks again for the great module