I cannot see images in my emails

I used to get a link to click on the righthand side of my email (I am reading them on aol) and when I clicked on this link it would bring up images in my emails, I dont see that link anymore and when I open up an email that has images I get the little red x in the left hand corner and no pics.

I am sure I must have clicked on something in error but now I have no idea how to bring back my images in my email.
Thanks for your help

 

Try Click Start
Right click on the bottom part of thr start menu.
Select Properties.
Select the Taskbar tab.
select Customize
and Restore Defaults.