I can't upload any new pictures.
The last time I had trouble, a new card reader fixed it.
I'm speculating here based on what you just said: but your process has been to take a picture with a camera, put the memory card in a reader, then upload to imgur from your computer without actually saving the picture to the computer. Last time you had issues, a new card reader fixed the problem. That means it wasn't an imgur problem, it was a card reader problem.
For me, the first thing I'd do would be to see if I could upload a picture from my computer to imgur (a picture that was saved on my computer, not on a memory card, eliminate the card reader from the problem).
Then the second thing I'd do would be to see if the computer recognized the card reader and allowed me to transfer pics from card to computer and computer to card. That will eliminate or pinpoint if the card reader is the problem.
