Every time I start the World of Warcraft trial it says This program has failed to start because d3d9 dll was not found Re-installing may fix this problem and i have tryed 5 times but it doesnt work

Try updating the drivers for your video card if you haven't already. For ATI cards go here: http://ati.amd.com/support/driver.html For nVidia cards go here: http://www.nvidia.com/Download/index.aspx?lang=en-us For Intel video cards go here then choose Graphics: http://downloadcenter.intel.com/default.aspx#

Then update DirectX from here: http://www.microsoft.com/downloads/details.aspx?FamilyId=2DA43D38-DB71-4C1B-BC6A-9B6652CD92A3&displaylang=en

Hope that helps.