Help with SPB and TF3D

[catalyst105]

I've been running SPB mobile shell, and it seems buggy. I've tried to uninstall and re installbut it still locks up almost every time I mess with messaging among other little things. I installed darkness's switcher so I could go back and forth between the mobile shell and TF3D to see if TF3D would be any better, and when I when I switched to TF3D from mobile shell using the switcher it shows a white screen where TF3D should be. With the white screen, I can only hit start and it opens a very slow "all applications" list to scroll through. It still appears that I have TF3D installed, and when switching the screen shows its loading TF3D. I hope I"m not making this all too confusing, but does anybody know what could be going on?