Sorry to hear you're having troubles.

You might want to try setting the unit to factory default settings.

This may be in the menu system. But you can try this. Hold down the Enter Button on the remote for about 15 seconds. If you get a menu prompting you to reset to factory defaults, click yes.

Another option is to hold down the menu button on the television to see if you can put it into Shop Mode, and then back into Dynamic mode. It may be that the settings will self-adjust.

Otherwise, maybe you can have a service tech go into the service menu and reset it to factory settings from there. It won't be free, but probably will be cheaper than $1000.00.

Keep me posted!