More than likely this application is requesting a resolution that is not enabled in X. If you can determine what that resolution is, you can add it to the XF86Config file. This can be done by editing the file by hand or if Mandrake has a GUI editor using that.
If you have to do this by hand, the following will give you a general idea of what is required. The file you are looking for is XF86Config (might be XF86Config-4). On my system, this is located in /etc/X11; if it is not here on your system, you can type locate XF86Config to find where it is.
Before going any farther, make a backup copy of this file!
Edit this file in your favorite editor (you will probably need to be root to do this). There should be a line in the file that starts with the word "Modes" (no quotes). This line is the one that lists what resolutions are enabled for the particular screen. Add any resolutions you need here.
Modes "1024x768" "800x600"
could be changed to:
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
Note that the resolutions do have quotations around them and should be put in the file that way. Save your changes and restart X.
Hopefully this takes care of you.