I just installed SDK 2.3 and Catalyst 11.3 on a WIn-7-64 box, using all defaults for the folder destinations. In building the CLInfo demo I get a "'CL/cl.hpp' No such file" error. The file does indeed exist, in C:\Program Files(x86)\ATI Stream\include\CL. The SDK resides under C:\Users\<myname>\Documents\ATI Stream and that's to where the ATISTREAMSDKROOT and ATISTREAMSDKSAMPLESROOT environment variable are set. It seems odd that this kind of error would occur when using all default folders during the install process, and it seems silly that every project in the samples would need their paths updated. Am I missing an environment variable or did I do something wrong in the installation?