Images not showing in emal

Images not showing in emal

I have noticed lately that when I click on certain emails from my vendors I can no longer see the images.  When I try to click on the area where it says display images, nothing happens.  I have tried shutting down Zoho Mail and restarting and that doesn't seem to help either.  

I am starting to get very discouraged with Zoho.  Between not being able to see the emails correctly and then seeing unwanted and inappropriate spam email in my inbox, I am ready to try and find another email system for our company. 

Is there any way to fix either of these issues?