Hi Debora, Is this occurring on the public Main instance at http://usegalaxy.org? Would you be able to share with me the history with inputs and the workflow, so that I can try to reproduce? This is odd behavior. Please generate the share links (you do not need to publish) and email those back to just me, to keep your history + workflow private. A screenshot of the "blank page" may also be helpful - I am not quite sure if you mean the entire window is blank or just one of the panes (center pane)? https://wiki.galaxyproject.org/Learn/Share Thanks! Jen Galaxy team On 12/10/13 7:55 AM, garzetti wrote:

Hello!

I have a question about a workflow I have created from my history. I can edit and view it, but when I try to run it, a white page appears and I cannot do anything. I have created other worflows which perfectly run, but I don't know why this one doesn't. It includes 4 steps for GATK pre-processing steps (Indel Realigner, Count Covariates and Table Recalibration).

What can the problem be?

I would appreciate any input! Thanks Debora ___________________________________________________________ The Galaxy User list should be used for the discussion of Galaxy analysis and other features on the public server at usegalaxy.org. Please keep all replies on the list by using "reply all" in your mail client. For discussion of local Galaxy instances and the Galaxy source code, please use the Galaxy Development list:

http://lists.bx.psu.edu/listinfo/galaxy-dev

To manage your subscriptions to this and other Galaxy lists, please use the interface at:

http://lists.bx.psu.edu/

To search Galaxy mailing lists use the unified search at:

http://galaxyproject.org/search/mailinglists/

-- Jennifer Hillman-Jackson http://galaxyproject.org