[Freesurfer] maybe a problem of tcl

hi,

I am a newcomer of freesurfer.Sereral days ago,I installed the freesurfer(its version is freesurfer-Linux-centos4_x86_64-stable-pub-v3.0.4),and practiced the data "bert"with tkmedit,tksurfer,it works ok. These days ,I meet a problem about tksurfer.At first,I run the command

%tksurfer bert lh white

it's good to show the surface ,and then when I try to load the Curvature " lh.curv",the tksurfer interface is closed suddenly,and the wrong information that appears on the termial is that

%alloc:invalid block: 0xb1ea60: 0 0 75 Abort

I googled this with"alloc:invalid block",maybe it is a problem of "tcl",but I don't know how to slove it,any suggestion would be appreciated!

Best wishes!

lvbin