It may be a Teamcenter issue since I've never seen this happen when working in Native NX. Exactly what context are you doing this, like is it while working in the Assembly Model itself or when in a Master Model Drawing?
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA Siemens PLM: UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.