
(also i'm French so forgive my english

Ok i'm pretty desperate... my dear DC has issues and i don't know how/where to look for help. So here i am!
I decided to plug my DC a couple of days ago, to play my first love of a game Skies of Arcadia. So far, no problems. I already had the wild reset issue a couple of years ago that i managed to fix, it didn't happen anymore. Now however, something new appeared: after playing for 10-15 minutes, if a random battle appears (screen shatters, goes black and the battle scene starts) or if i open a menu (screen goes black as well and the menu appears)... it just stays black and the music keeps playing behind.
I'm playing on an LCD tv, but i had no issues on the one i played on before.
Can it be the cable? Dust? Lens? Chuck Norris? (please not this one)
Thanks if you can help me!