Can't enter in the world, come back to the login menu

[la_taupe123]

hi, i have installed EQ and patch it with all the patch 2 days ago...
i have read many topic and speak to some people so i have replaced 3 files from my eq directory :
eqgame.exe
eqmain.dll
EQGraphicsDX9.dll

and copy all my render effect directory to the EQ directory....
i can login ...i choose the scorpious2k server and click play everquest, i create my character and then when i click enter the world i see a picture and after the login i see a black screen i wait 5 second and then the login menu apears (the second menu that you see after enter in EQ)...

ps : i have the latest version of directx and last nvidia driver for my video card

can someone help me....

thanks a lot