This was a Firefox browser error, probably caused by too many windows, works ok in Chrome.
I am trying out Magento ver. 2.1.5 as thinking of switching from WooCommerce.
After installing I am seeing the below on some admin pages, some show as I would expect them to but many are like the below, some of the page to the left is unreadable.
Any ideas?
Or is there another admin theme I could use
Thanks