my zen v plus is one weird device!!!
i finally had the chance to go to the store to show them the problem with the blue line on the screen. whe i got there, i turned the player on, the blue line has appeared during start up all the time since Dec 26, but for some reason when i was at the store the blue line wasn't there. i looked like a fool there trying to convince the sales clerk that something's wrong with it, but nothing, no dead pixels, no line, nothing.
5 minutes after i left the store i looked at the screen again, low and behold the blue line was there!!!
anyway, at least the store clerk assured me that i could have it replaced if more lines appeared.