I'm using Version 5 with Windows XP and a var channel set to fixed with a radio shack aux power supply to turn the tiu on.. I don't know much about computers but sometimes my computer goes to sleep so I keep moving the mouse every now & then...
It might not hurt to try another channel. The download doesn't have to be fixed 1. Only the engine receiving the file should be on the track. Yours should be working especially if you can get to sector 8. good luck.