Hi, I have been learning the 1.3.3 version. Apparently, everytime I tried to load some data files, I got the following error message: "TypeError: format() takes exactly 4 arguments (5 given)" Any clue on how to fix it? Thanks in advance for your help. Regards, Simon Sham,Ph.D. NMR Core Facility 933 S. 19th Street CH19 B30 Phone: 205-934-5696 Email: ssham44@xxxxxxx