for the mvidea I found you can manually edit the range of transponders it blindscans and also the sr range,which speeds up the blindscan process.The viewsat platinum with 9-11-2007 firmware was the last version to have blindscan and didn't have that option of editing.A blindscan could take over 1 hour per sat.They got rid of the feature for later firmwares.I was blaming the processor since they both used the same one but it was probably just the default settings they use.