Hi Jeremy,
3dSurf2Vol gives that output when the 1D file does
not appear to have more than one column (it should
have one for node indices and at least one for data),
and at least one row (one node).
What does wc say about its size?
wc lh.sm4.del1.pmf.glt.anova2.index.1D
If you want, you can upload this file, and I'll look
at it.
It's hard to imaging any reason for a difference
between RH 8 and RH Enterprise, since that is a text
file. So uploading may be a good start.
- rick