Fred, nobody would be offended if you'd just post your SHELXL .ins file here; there are enough experienced crystallographers to spot the mistake. Best would be if you could pare it down to small size, but such that it is still reproducible (my own experience is that this almost always makes me find my own mistakes).
But to try and answer your title question, there is the bruker-...@g-groups.wisc.edu mailing list. Best wishes, Kay ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/