[galaxy-dev] Stopping Jobs

It appears that I have a "stuck" job on our local galaxy server that is causing problems. Galaxy seems unable to upload new files or run tools. I have checked the manage jobs tab in the admin section and there is a job (an upload) that has not been updated for an hour. I have tried to stop this job using the button on this page but that hasn't worked. Is there any other way I can stop or delete this? Thanks Shaun -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.