P E software locks computer
Could it be that your P E software needs updating? Could that be causing your computer to freeze up? Why don't you visit the Brother (updates) site and compare your version with the update info. If that is the prob (or maybe you need updated drivers for the card reader)....anyway, you can download the entire updated program from Brother site and install--then connect the box to verify you have ownership, and it will update the drivers. Also, you know that the OS must be 32bit processor, right? I hope you can get this worked out--it is a great program...but almost each release version has updates. Good luck!