Parameter is incorrect

I have a 16 GB Micro SD card from my phone that just stopped working and said it was empty, I know there's a thousand pics on it ,nothing I tried would bring it up. So I removed it and got the free version of recuva, went through the wizard and selected what I thought was right , and it said the parameter was in correct, I'm not sure what that means, but I need help...currently running windows vista.

Thanks Jim

This is an error that seems to comeup now and again with no clear answer as to what causes it.

eg.

http://forum.piriform.com/index.php?showtopic=37653

Have you tried it in a friend's phone?

Have you tried right-clicking on Recuva and selecting 'run as administrator'?