Smooth and trouble-free upgrade, using the 3.8 from the Facebook page. Win7 Enterprise 64-bit. Monitoring the local snow plows as well as a university security trunk located 22 miles from me. Security has a slight digital garble to it, but improves when they speak louder. I've never heard DMR before, so that might be normal.
For anyone wondering, and I didn't see this mentioned, your 668 programming and current SD card works just fine in the new setup (note that I am not using the factory 4GB SD card; I put that one away and am using a Sandisk 8GB). I saved my 668 programming via iScan, did the firmware and DSP conversion, didn't bother changing anything on the SD card, used EZ Scan to read the 668's archive with no issues. Verified that the existing unmodified 668 programming was working fine in the "1080". After adding some DMR programming in EZ Scan, I just wrote it to the scanner.
Eric, what an awesome Christmas present this is! Thank you so much for all your hard work and dedication. Wackyracer, thanks for your step-by-step, although I did not remove my batteries.
Muskrat, I really hope you're feeling better soon.