I have had a progression of a problem. I am hoping someone can point me in the right direction.
Firstly I had a situation where I lost the ability to reset a customer password in admin because the admin password field disappeared.
This has progressed into blank screens when trying to add/edit categories and attributes as well as now the entire Customer Information/Account Information screen is blank (other than the side tabs).
There does not seem to be anything of consequence in the log files as well as no blatant errors. I also have checked and it seems as though no core files have been modified.
A point in the right direction would be greatly appreciated.
My first thought is a browser issue. Have you tried using a different computer or browser to access your admin?
Thanks for the response. I have tried chrome, firefox and safari. Same results. I have tried all the "standard" fixes.
Not sure if you tried these ideas yet, but here is a great list of possible issues from stack overflow: