Catalog Attribute “Manage attributes - edit product attributes - when I try to enter data into the fields and "Save" or "Save and Continue" it does not work, nor can I delete obsolete admin options. Is there a fault or a way around this ?
In Magento exist predefined list attributes that are called system attributes. You cannot remove them as they are required.
Here is article on attributes -
Please, specify what exactly attribute you are trying to modify and what values you add to what exactly fields.