Television and Home Theater

I recently bought their LGHT805TQ home theater system (like 3weeks ago), i never even bothered to check the logos on the pack cos the older model of their home theater that i have plays DTS sound flawlessly, so automatically i assumed this would do the same and with a better experience, it never even occurred to me for a sec that i should test its DTS capability cos i've never had any experience of dvd players not being able to play DTS audio from dvd movie.

I just replaced my IC Convergence and 2 pico fuses in my Mitsubishi 55511 and it worked for about 5 minute and is back to the code 22. How do I fix this? do I have to replace evrything again? Or is it something else?

My inputs on a Dell tv are messed up. The ones on the end do not work right, the picture jumps around. I have to use the back inputs. But they are the four cord hookups and the back of my dish network receiver only has red yellow and white... I can hook up the ryw ones but only get black and white pictures. But the I get some reception with the cable hookup (coaxial) but it jumps around as well.... any help? I have to either watch a jumpy color picture or a good black and white one!