Blank Application Icons for GNU Applications on Solaris 8

[Gebhart, Mark A]

I recently installed the latest GNUstep software and now I am having trouble when I iconify applications.  I will use GNU mail as an example.  When it starts the GNUmail icon is in the bottom left hand corner of the screen and when I iconify the Inbox it goes away and a solid white icon appears next to the GNU mail icon.  I have tried multiple approaches but could not solve this issue.  Any help would be greatly appreciated.  I am running:

Gcc 3.1
Solaris 2.8
GNUMail 1.0.99
Back 0.8.4
Base 1.5.2
Gui 0.8.4
Make 1.5.2
GNU Window Manager 0.80.0

Thanks,
Mark