Game Jack Space Problem

Hi All. My problem is that I have installed this utility on my system but I have a problem with Game Jack stopping at 4 GIG. While backing up my kids PS2 games it automatically stops at teh same spot each time. I have searched through all the folders for a setup related to space. It does automatically when it gets to 4 gig but I don’t know how to go to the next process if there is one. I would apreciate any help and guidance related to the program. Today is the very first time that I have used this program.

Thnaks in anticipiation
Ringdown :o)

Which operating system? Which version of GameJack? Which file system do you use?