Please forgive what I'm sure is a noob question.

I just bought PB Pro, USB programmer, and installed it all from the CDs using the defaults. Read the MPLAB IDE v7.40 help, created project, made a .bas file, set the device, compiled and then get the following. I gather it compiled OK, as it built the .asm file, but it can't execute mpasmwin, the assembler?

I verified the path that's set in the IDE points to mpasmwin.exe. There is a similar thread in this forum that I followed, but things seem to check out correctly. Other ideas?

Executing: "C:\PBP\PBPW.EXE" -ampasmwin -oq -z -v -p12C672 "12c671.bas"
PICBASIC PRO(TM) Compiler 2.47, (c) 1998, 2006 microEngineering Labs, Inc.
All Rights Reserved.
Pass 1:
Pass 2:
Code Gen:
Macro Pass:
mpasmwin /q C:\IBM_PICS_09032006\PCB_Boards_08262001\BTL_MB_4\ Halloween2005\12c671.ASM

ERROR: Unable to execute mpasmwin.Skipping link step. Not all sources built successfully.
BUILD FAILED: Thu Nov 02 16:18:04 2006