Have you tried opening an image with fslview? When you start the program, no image is loaded by default -- so the blank window is normal.
On Apr 18, 2012, at 11:15 AM, Michel Bottin wrote:
> I have installed FSL 4.1.9 on my iMac under MacOS X 10.7.3 Lion with fsl_installer.sh. The installation seems OK according to the criteria in http://www.fmrib.ox.ac.uk/fsl/fsl/macosx.html "Checking the installation".
> But when I launch /Applications/fslview.app, this application appears with X11 but its window remains desperatly empty.
> Thanks in advance for any help.