How to Fix the black screen error

I have tried to fix this problem for alot of people, and for some reason its just not the settings o_O today i am gonna make a tutorial on how to fix it. first of all, try this guide here http://runedev.wikia.com/wiki/Runedev_bot_client_-_Graphic_Settings IF THAT GUIDE DOES NOT WORK, THEN FOLLOW THIS GUIDE, BUT IF IT DOES, LEAVE THIS GUIDE

you will find three files called ".jagex_cache_32" in three different locations, the locations are:

C:\Documents and Settings\user C:\WINDOWS C:\

go to each location and remove the folder after that, go to www.runescape.com/game.ws and fix ur settings, http://runedev.wikia.com/wiki/Runedev_bot_client_-_Graphic_Settings