sounds very similar to a problem I have over the weekend. What load do you have and if it is the newest did you try to load any other hacks. The way I got it to work is I brought back an old version of the tivoapp, renamed my sys.author and it cleared up.
I'll compare the tivoapp to my other hdr112's. I already renamed my rc.sys.author to have tivoweb not be loaded. Did you have the same error? Now that I think of it, I think it crashed the first time at about the same time it was getting service data off DSC. Hmmmm.
I had the same error. I compared the size and it was the same but I brought back an old tivoapp anyways and it seemed to work. However I think that it may have been tivoweb but I am not sure because I took it out of loading and changed the tivoapp file at the same time.
The problem was not with the tivoapp program in my case. I took my backup disk and the unit worked fine, so I figured it wasn't the power supply or other hardware problem. I didn't see any problems with the software modules either.
I was able to get the unit working again by deleting the program and guide data. It then started working properly again, once I had it dial in to get the guide data back. It must have had some problem in the guide data. Re-running a guided setup didn't fix it but deleting the guide data did.