Hello billyw1,
Further information will be necessary in order to assist you. You may want to provide the system information/configuration and the exact behavior or error message you are getting.
Please note that Intel® WiDi ready systems come with the software preinstalled and enabled by the computer manufacturer and are advertised as such. The system must comply with all the hardware requirements from Intel® which you can find from the links below.
If your system does not meet the requirements unfortunately the Intel® Wireless Display will not work. Being this a platform dependant technology, for custom built systems or others, Intel® WiDi may or may not work.
System requirements for the Intel® Wireless Display
http://www.intel.com/support/wireless/wtech/iwd/sb/CS-031059.htm
Updating to the latest version of Intel® WiDi
http://www.intel.com/support/wireless/wtech/iwd/sb/CS-031109.htm