Non-customized width of tables in PickList when creating/editing system user under Internet Explorer.
click "Admin" button
choose Define new System User/View System User link
choose Office/Edti user information
find Permission part and Role PickList
Role PickList tables has non-customized width which depends on number of letter used in chosen Role. See attached files
Role PickList tables has customized width
This sounds like it might be related to - see comment section there for potential fixes. I haven't got a version of IE available to test my suggestion in this case, but looking at the creation/edit screens for new users, they don't have a valid DOCTYPE declared above the opening HTML tag either.