With the Xaw GUI, I can use successfully any cursors? How to correct that?
Try to use the right & left buttons of your mouse (before and after the cursor). The lef button -> it increases the parameters, the right button -> it decreases the parameters. This problem is not an XdTV bug but a Xaw limitation. Try to install the neXtaw library which is better that the Xaw one (better cursors management).