QUOTE(SubRosa @ Mar 11 2015, 12:48 PM)

I am wondering if you are signed in when you are trying to delete pictures? If you look in the very upper right of your screen it should show your Imgur screen name. If it says sign in and sign up instead, you are not logged in. Or you might not be logged in with the right screen name, if more than one person using the computer has an Imgur account.
Whenever I mouse over a thumbnail I see a red x in the lower right corner, and a paintbrush palette in the lower left corner. Clicking on the X outlines the picture in orange, and brings up a little box asking me if I want to hide or delete the image. I click on Delete, and that is all there is to it.
I'm signed in, but there are no thumbnails. I wonder if it is the difference in a free account and a paid one. I am just using their free service.