Hi all, I have the result of the count tool in one file, as just one number, in a tabular history item: 2160525 I want to divide that number by 3137161264: so I use 'Text Manipulation' to compute 'c1/3137161264'. (the naming of that section could be better IMHO). But I get an error: An error occurred running this job: /Missing or invalid 'columns' metadata value, click the pencil icon in the history item and select the Auto-detect option to correct it. This tool can only be used with tab-delimited data./ Is there an other way to compute this? Analysing this bug a bit further: -- adding more rows still reports this bug -- adding additional columns makes the bug disappear. Cheers, Joachim -- Joachim Jacob, PhD Rijvisschestraat 120, 9052 Zwijnaarde Tel: +32 9 244.66.34 Bioinformatics Training and Services (BITS) http://www.bits.vib.be @bitsatvib