I've red all the tread ( not all the post, sure, cause some or them are too much tecnic for me, i'm a completly newbie to the linux world, but i've red most of them... ) . I got to start xterm, make it work, lerned how to list files and move the mplayer in the right dir in the memory. Than i din't read that you must put option between the player and the avi... i'm sorry to disappoint you...

About the " confusion" or " rumor " that i would have created making that question, i think that you triple it, by responding that way, and all the post that came after. Thx bytheway for replys.