Transfering pictures

I dont have a memory card yet, so my pictures are saved to the camera's memory. I use the plug to transfer my pictures to my computer. I plug in the camera, then turn it on. The lense usually comes out and something pops up on my screen of my computer that asks me if i want to transfer my pictures to a folder on my computer, but now the lense doesnt go out when i turn it on while it is plugged in...and on my computer it says that the pictures are being transfered and then it disappears and doesnt ask me if i want to transfer them...