Template Bug

For some reason, on my website SPLURGIN.com, I am coming across a serious problem..as an admin when i log in..my " Dashboard, account page looks perfectly fine,..

but if i log in as a member or register as a new member, it displayed a weird screen copying my template with a black background..not allowing me to access any of my dashboard setting or able to see anything..someone PLEASE help me..neither GORPUS ( whos template it was ) or I have been able to figure this out...

you may register as a user to see what i am talking about

Thank You