Suppress is not working.........SW 2011 sp1.0

We recently upgraded to SW2011 SP1.0 & EPDM 2011. I have an assembly and I want to create a few configs within this assembly. So some of the sub assemblies & parts need to be suppressed. Whenever I tell SW to suppress a part, it will suppress & then unsuppress in a matter of seconds. WTF? No matter how many times I try, it will not let me suppress this part. Now what?

SolidworksAssemblies