I have the Melabs USB programmer and I am trying to program a

PIC18F4550-I/P

I keep getting the error target device does not match selected device. I have the PIC18F4550 selected from the full down menu. I am not sure if the -I/P makes a difference? I checked the troubleshooting section on the melabs site. They said just to make sure I had the right chip selected...I do, check the power in the board for 5V, I did, and I am getting 5 volts. And to make sure the chip is seated right, I think it is, doesn't look like I can screw that up too much.

This is the first PIC I have ever tried to program. I an new to PICs but not electronics or programming.

I have several PIC18F4550 and 18F4450 and have gotton the same error with each.

Anyone know what may be going on? Does the Melabs programmer use a special USB cable? I am using a USB cable that I baught for my printer, but is is just a basic USB 2 cable.

Any help will be appreciated.

thanks,

mw