images not showing - new install, new user

Hey there, I'm new here and I've successfully installed elgg on my Ubuntu server.  I am unable to see images in elgg.  I upload them, and I don't end up seeing the image or thumbnail.  I have been able to successfully upload txt files, so the upload seems to work.   There appears to be something weird with images though.  If anyone can help, I'd appreciate it.

 

Thanks

Patrick