Hi all, I'm Flavio, doctorate student at Fluminense University from Brazil. I would like to report a bug with tkmedit. I'm using Ubuntu distribution, kernel release 2.6.27.11 (32-bits). I have installed FreeSurfer version freesurfer-Linux-centos4-stable-pub-v4.2.0. My video card is a ATI Radeon 9600Pro. I'm using ATI/AMD FGLRX device driver on Linux. When I start tkmedit (eg. tkmedit bert orig.mgz), the coronal session image is displayed. But, when I move the mouse (eg. to select the sagittal view on tkmedit menu), the image disappear. The display window may be minimized and I can't view the image anymore. When I try maximizing image window, the image is displayed until I move the mouse. Then, it is disappeared again. Does anyone have a doubt? I would appreciate any help. Thank you, Flavio.