Dear FreeSurfer,

I followed the tksurfer example in QaImageScript (http://surfer.nmr.mgh.harvard.edu/fswiki/QaImageScripts) and I can see the output images swipe through but the tiff images I saved using save_tiff is entirely black.  And also I received the following error:

Received X error!

                Error code   : 8

                Request code : 73

                Minor code   : 0

                Error text : 'BadMatch (invalid parameter attributes)'

Can you please help me figure this out?  I am using VMWare&Ubuntu9.10 on my Windows 7 machine.

Your help will be greatly appreciated !

thanks,

Aifeng