Finally i got my Viewsat ultra working after being dead for a while.
Follow these instructions
1. Turn off the receiver from the back. 2. Use null modem cable which came with the box. 3. Open the loader 2 and select factory file 117 4. Click Pc-->Stb. Turn on the receiver from the back after 4-5 seconds. 5. It will say Download Complete on the computer and it might say "Failed" on the recevier's LCD 6. Turn off the receiver from the back. 7. Run the loader 2 again & upload the last DN file (12/07/07) 8. Turn the power on from the back after 4-5 seconds. 9. Let it run and this time it will successfully download. Do not power off the freceiver when download completes for a while.