AVR-Chat

I bought a new STK500 starter kit and the "Embedded C Programming and the
Atmel AVR" book last week. I have the attached the STK500 and it downloaded
the firmware update with no problems so I know the connection works. I'm
working through Appendix B "Getting Started with CodeVisionAVR and the
STK500" in the book but when using the CodeVisionAVR IDE to program the
90s8515 controller I get the "STK500/AVRISP communication error" message.

I've checked the possible problems as described in the error message:
  - The STK500 power supply is turned on, the 3 led's light up.
  - The programmer type in Settings->Programmer is set to Atmel
STK500/AVRISP
  - The COM Port is set in Settings->Programmer, I have both COM 1 and COM 2
available on one computer and COM 4 available on another. I'm getting the
same error on both machines.

I'm sure I'm probably overlooking something simple but haven't found the
problem yet. Any suggestions?