Dear Developers I am using the latest version of analysis (patches upgraded earlier today) to assign a LARGE protein and have already set up all the spin systems across all my spectra. I have been attempting to use the format converter to create sparky peak list tables so that I can try out the MARS automatic assignment programme. But what ever I select in the "additional options" in the "peak export menu" i cannot get a peak list which actually lists the peak number. I can get a table of shifts in the correct order but with either ??? or the assignment in the peak identifier column. unfortunateley I have a large number of gaps in my peak lists and it would be rather tedious to annotate these lists by hand. If I go on and run MARS on these lists I don't see how I will be able to link the output back to my old peak lists. Does anyone know what i am doing wrong or have any suggestions? Also there is a small bug in the format converter wheby when you click "export peaks file" it looks as if nothing happens because it brings up a far smaller window (data dimref selection), in which you have to click "OK" before anything will happen, directly underneath the main export window. I seem to remember something similar occurring when importing peak lists into analysis in the first place as well. Not a problem when you know what is happening but could lead new users to think the programme doesn't work properly. Cheers Stephen