I created a new sheet template with my Title Block. The problem is that I'm trying to find and change the ugs_sheet_templates.pax. file. I can't find this file, in the "templates" folder is not there :/
Go to Solution.
Check it at the following location
"C:\Program Files\Siemens\NX 12.0\LOCALIZATION\prc\english\startup"
I solved this problem. NX12 created a "templates" folder in DRAFTING. After change the .pax file, new sheet is working