*Ahem*
So after seeing countless people copy and paste
Reinstalling is a waste of time in this situation.
blah blah blah blah
I decided to post a fix that worked for me, and will probably work for you too.
First off, start up your MineImator, (works on both CB and Vanilla) And then check to see if it starts in a maximized window or a minimized window. If it starts in a maximized window, well, that's your problem. If it starts minimized and you get the error, well let's say this fix won't do anything.
Exit the MineImator window and then right click on it, click properties and then look for an option that says
"Open in: e.g Maximized"
I forgot what it said so I'll have to edit that.
Then you'll want to set it to Minimized, after that click Apply and then press Ok.
Then restart MineImator and it should work.
If it doesn't work, well don't go whining in my replies section "It didn't work you are stupid go kys I'll go look for a better one"