Hi,<br>&nbsp;I am experiencing similar problems to Jennifer and Glenn with tksurfer; the (tksurfer) error message is:<br>&nbsp;<br>&nbsp;surfer: ### redraw failed: no gl window open<br><br>and the display shows only a thin slice of the posterior of the surface.<br>
<br>The computer is a fresh install of RHEL 5 on a new machine, and my university IT department has updated the OS in connection with a&nbsp;Matlab installation.&nbsp;I&nbsp;believe they used run &quot;yum update&quot;. I have tried both FS v.4.0.3 and v.4.0.4.<br>
<br>&nbsp;<br><br>yours,<br><br>LMR<br clear="all"><br>-- <br>yours,<br>LMR