Pictures disappearing on my device after importing them on the Desktop Manager?

Blackberry Torch 9800.

Using the latest Desktop Manager. I import my pictures to my computer, disconnect the device the proper way, and then when I look at my phone, all my pictures are gone, but when I connect it to my computer, the pictures show up.

I tried searching for similar problems, but couldn't find a solution. I also did a soft & hard reset. The pictures refuse to show up on my device, but are there when I connect to my computer on the Desktop Manager. Does anyone know what the problem is?