>So where we ... > >And allthough we never figured out what the real problem was, >it must have been something in the project files. > >Sinply creating a new project in the same directory, >and adding all the same source/linker files to that fixed it ... > >Comparing the resulting MCP project files did not show >any significant difference as far as we could tell ... > >Regards, JvW Well, it looks like that problem is now sorted. See my posts on Microchip Forum ... http://forum.microchip.com/tm.aspx?m=389247 Wonder if your problem was something similar, and rebuilding the project sorted it out. Now one interrupt works, guess the other not working is a mistake in the setup ... Problem for next week, couple of days holiday now. ;) -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist