Hi,
When A51 encounters an error during the expansion of a macro it gives error line references to the original source file that are wildy incorrect. These are in the output window in uV3. When you then go to the referenced line #s in the source file the code there is not in error. When you go to the related listing file(.lst) the errors are underlined & described as to nature of the error. At the site of the error notations there are references back to the source file lines that disagree with the actual locations of the errors shown in .lst. but do agree with the erroneous line #s in the ouput window. I blew some time trying to figure out what was wrong with the referenced source lines before I realized that the errors were elswhere. Both the .lst error line #s differed from the invalid .a51 lines by decimal +300.