Panel Driver.  I don't know what causes my in-ability to view Forum pictures.  On my computer, to remedy the problem, I close my Internet connection, shutdown and then re-start the computer.  The pictures are again viewable after I have re-started my computer and re-accessed the 
Y-Blocks Forever website.   
I hope this works for you.  
          
			    				
			    NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York