[galaxy-dev] Crash while attempting to saving bowtie output

Hi, On our local install, we've just enabled bowtie NGS mapping and although the search runs fine and the output is viewable in Galaxy, any attempt to save it brings down the server. The only error in paster.log is: galaxy.datatypes.registry WARNING 2009-12-18 16:32:38,517 unknown mimetype in data factory sam Tried it on large files and small files with the same effect. Trying save as fails with an 'unable to read file error'. Anyone have any ideas? Cheers, Chris