Hi Mike,
1. Try to disable the 'Viera Link' by setting it OFF (page 32).
2. And try setting the 'HDMI Resolution' to AUTO (also page 32).
3. And set the '24p Output' to OFF (also page 32).
4. And finally, if your TV is connected directly from the HDMI cable to your BD55, set the 'HDMI Audio Output' to OFF (also page 32 from your manual).
* Hope this helps.
Bob



