I installed the KEIL uVision development environment on my E: drive. When I add a source file that includes the header file c8051F020.h, it defaults to the path C:\KEIL\C51\INC\CYGNAL\C8051F020.H. How can I change this default path to point at the E: drive? Will changing the <c8051F020.h> to "c8051F020.h" cause it to look in the local directory for the file? Thanks in advance for any help you can provide...