The job table is a file called JOBTBL.SYS which is automatically generated whenever A-Shell is launched and the file is not already in existence. Its size is computed to allow for some reasonable multiple of the number of licensed nodes, but if you run a lot of jobs that do not count against the license (such as background jobs or PolyShell jobs), then the computed number may be insufficient. In that case, you can add a MAXJOBS=## statement (which see in the Configuration section) to the miame.ini file to specify a larger size. It is not normally necessary to get everyone out of A-Shell to make this effective – the next time A-Shell is launched it should detect the new size and expand the file.