[galaxy-user] Problems saving workflow that includes 'manipulate fastq'

I attempted to post this message to the list a week ago, but haven't had any replies, so may not have posted it properly. I am making a workflow without having actual data to test it on yet. When I include even a (seemingly simple) 'manipulate fastq' step, and save the workflow, it tries to save for many minutes, unsuccessfully, until I get sick of it and close the window. Can someone please tell me if there's something I can do about this? thanks Pip Griffin