As some of you may already know, I used that downgrade method to go from Android 2.2 to 2.1. And since I have an SLCD screen, the drivers are incompatible.
I tried to blindly update via an SD card zip file update in HBOOT, but no luck.
An RUU would do the trick, installing the update via my computer (my monitors work )
But I contacted HTC support, and they don't make RUU's for OTA-released updates.
Any suggestions/assistance would be awesome.