Hellow, I have just started working on the EZ-USB AN21xx - FX with the Keil 4K eval version. When I run the sample program dev_io.uv2(LED -Display for an up-down counter)given in the Keil examples directory,it works fine. 1)But when try to run any other programme(After loading the Moniter) ,it does not workAlso the programme does not terminate even after pressing the stop butten. 2)If include the ezusb.h and ezregs.h files ,i get an error message saying that the files could not be opened. When should I include these files? 3)When the ezusb.lib file be included in the programme? 4)When I copied contents of the file dev_io.UV2 ,and created a new project using it(after setting the same Options for Target1 as in the original file),it still does not work. Please kindly help me.