Dear Geerten, I use TopSpin 3.5.7 or 3.6 I don't have problem with 2D like 15N-HSQC, only with 3D that have been acquired on our 700 AVIII HD. So far the only solution that works is to convert to UCSF as Vicky suggested. regards Christian ######################################################################## To unsubscribe from the CCPNMR list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCPNMR&A=1