@ george
While you have it as a 3790 you could also learn how to do some easy stuff.
Learn how to run commands via SD card.
Learn how to Backup and Restore region 41 NVRAM , 140 Features, 16 Logo.bin (via SDCARD)
Learn how to enable MP3 and Video Player. (Region 140) via SD card.
Learn how to restore logo.bin via updater.exe (pre-boot method)
All the info is available at the Wonderful Noeman.org