problem when i start client

hi every1, im trying to play but every time i press start client in the game launcher it shows me an error window without anything writed in it, i have the lastest version 1.676 and i have the new media.pk2, im on windows 7 x64, can anybody help me?
heres a picture of the error :
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oh yeah and i tryed like 10 times reinstalling and it still doesnt work.

download new media.pk2

start with admin

i already tryed starting with admin and windows xp sp 2, i also tryed without, still doesnt work and i told u i already got the new media.pk2

Download the Patch.

And extract to game file , and open it and install,
then the game will work,
and open Loader to be " NO DC " cuz if u log get dc.

omfg r u stupid? learn to read, i told u i have the lastest patch and if u look at the picture, u can see its 1.676, but it still doesnt work

did u patch the media to use the bot? that can be the reason... check the media's files

no i didnt patch anything, only the 1.676 one i just downloaded the client, data and media, patched to 1.676 and it still doesnt work, maybe its my client?