Did you have this problem before installing the 2x headbands? The only time I ever experienced this issue was after installing the frame rate patch.
The frame rate patch consists of model files from NBA Live 06, and that's what caused this problem for me and other people. You said you completely uninstalled/deleted NBA Live, but still have the problem? Make sure you don't have any of these files in your sgsm directory.
-player_uneckwideB.ebo
-player_uneckwideC.ebo
-player_uneckwideD.ebo
-player_vneckB.ebo
-player_vneckC.ebo
-player_vneckD.ebo
-player_vnecktabB.ebo
-player_vnecktabC.ebo
-player_vnecktabD.ebo
-player_vneckwideB.ebo
-player_vneckwideC.ebo
-player_vneckwideD.ebo
-player_cutB.ebo
-player_cutC.ebo
-player_cutD.ebo
-player_historicB.ebo
-player_historicC.ebo
-player_historicD.ebo
-player_leanB.ebo
-player_leanC.ebo
-player_leanD.ebo
-player_medB.ebo
-player_medC.ebo
-player_medcutB.ebo
-player_medcutC.ebo
-player_medcutD.ebo
-player_medD.ebo
-player_skinnyB.ebo
-player_skinnyC.ebo
-player_skinnyD.ebo
-player_thickB.ebo
-player_thickC.ebo
-player_thickcutB.ebo
-player_thickcutC.ebo
-player_thickcutD.ebo
-player_thickD.ebo
-player_tneckB.ebo
-player_tneckC.ebo
-player_tneckD.ebo
-player_uneckB.ebo
-player_uneckC.ebo
-player_uneckD.ebo
Other than that, I have no idea what could be causing that, especially with a defualt NBA Live 07 installation and no 3rd party addons.

Sorry if I am of no help.