It was working on win 98 based programme earlier. when I installed win 7 it was working fine. due to some reason I was forced to format my computer, and to install win 7 again. It is now not working properly on win 7 now. While printing money receipts (3" X 10") it skips 4 receipts and then prints the next receipt. As the money receipts are pre printed, we are having a great problem. See if you can help.