I occasionally use my 1st gen iPad for display purposes. I transferred a pdf via Dropbox, and when I clicked on the file to open it I got a gray page. And seemingly no way back to the file list.
I tried closing Dropbox app but it reopens with same gray page. I restarted the iPad but same happens.
My next step would be to delete and reinstall the app, but I'm not sure I could download a version for Ipad OS 5.1.1 - the latest for this ipad.
Any ideas of how to get back to a functioning Dropbox welcome - preferable without re-installing