Hello there, I am writing to ask for some help with an error I am getting in LimmaGUI. I am able to load in my data files with no problem and create an M box plot with no normalization for all arrays, but when I go to plot an M box plot with either within norm and or between normalization I get the following errors: Subscript out of bounds and then followed by "assign ("MAwithinArrays", MA, LimmaGUI environment):Object MA not found. I am using R in Windows XP, version R 2.0.1 2004 and LimmaGUI version 1.3.9 Please help.... Liz