hey guys just signed up and i hope to make this forum my second home

anyways i want to go right into game programing so i installed DX9 SDK
and started reading but when it come to testing some of the samples
they wont compile. says:

cannot find "d3dx9.h" no such file or directory

the file is there i checked twice and reinstalled DX9 SDK twice and
stil nothing

anyone else had this? know how to fix it if u have?

if its somthing simple, kick me gently i am a 3day old C++ coder