I have a Norcent DP-501M (got it for $62.99 shipped, no tax, no rebate) .
I updated it to Lite-On LVW-2001 official firmware 3.02 using the "unplug and hold power button" trick.

I then used the special 4-digit code to disable MV.
I used the p-scan button to switch modes when watching a DiVX disc, but I couldn't (seem to) get 1080i output though.

Any suggestions on what might be wrong?

Thanks!