OK. I decided to go ahead and post the procedure. However, if you can, archive your recordings. This procedure will lose all your recordings, timers, and many, but not all, settings. It's pretty much like getting an RA'd box. Other than that, ronsspas--the OP--it sounds you've got nothing else to "lose" trying this:
Dish Network Last Resort Solution for Erring DVR's
Full Memory Dump and Reformat of HDD
Try this instead, it'll do a full reset/reboot as part of it:
1st: Hit this button sequence on your remote:
Menu-6-3-Info-Right-Left-TV/Video (or Input on some remotes)
to clear the NVRAM, then reboot it.
2nd: After it reboots and comes back up, just do a:
Menu-6-3-Info-Right-Left- Play,- Play,- Recall to format the internal HDD. It'll prompt to format, and reboot again.
You will lose all recordings, and your settings (and timers, write them down first) but it may fix your drive! If this doesn't do it, then it's time to RMA it.
Good luck.