Not really sure as to whether or not this is the correct place to post this, buy oh well.
My Dad has an Olympus SP-570UZ camera, lately I have been uploading a few pictures onto my laptop, but a few days ago it stopped uploading

I plug it in, and select PC uploading then it just says 'one moment' and nothing else happens, normally at that point a screen would come up on my laptop so that I can select the pictures I want to upload. Please could some one help me with this problem??
I have tried it with 2 different computers, and the same thing happens.
Thanks, James.