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I've had the same problem.
In the Tivo Desktop settings stop and restart it.
That fixes it for me.
I have also just hooked up a Tivo HD and have had some odd experiences.
It came with software version 8.1 something and I kept manually...
Just asked Charter here in St. Louis.
They need to install them and they charge $30.
All of the codes for cable boxes and VCRs are different.
If just the connector is broke I would think any decent TV repair shop could replace it.