[intelitek_Chris]

easyC does not automatically detect (and can't possibly know) what port you want to use to download. You probably have the wrong COM port selected. Go to the 'loader setup' and try selecting another one of the available ports until you find the right one. If you are using a USB adapter, each time you unplug the cable and insert it again, there is a chance your COM port number will change.

If this doesn't help, try another loader. You can grab the hex file from your project folder and use another loader to upload it to the RC as a test.
Good luck,

Chris