Ziad, thanks so much for looking into this for me.

ziad wrote:
> I don't know what is going on with your machine.... What kind
> of OS and SUMA binaries are you using? There is a slight chance
> that compiler optimization is causing the trouble.

I'm running RedHat Enterprise Linux v. 4
I routinely download the linux_gcc32 binaries; the version I'm using currently was compiled on Jan 16, 2008.

And, here's another thing. I've since tried this with a second subject. And, in both cases, smoothing on the RH works fine and the LH gives the follwong similar error message (for the 2nd subj.):

** nodemax(+1) of 118957(+1) is larger than the forced_mask_length of 117291
-cmask datasets may be inappropriate for surface used
*** glibc detected *** free(): invalid pointer: 0x0097e800 ***
Abort (core dumped)

I'm working on a 3rd subject right now and this time the LH was able to be smoothed (haven't tried the RH yet).

Any suggestions on how to get past this?

Thanks,
Adam