gnome does not refresh desktop

[Jim Christiansen]

Hello,  I have just switched my wife's computer to gnome - on core3- so that 
she can easily use the automounting camera and usb features.  Occasionally, 
she will drag and drop a file or folder onto the desktop, but it won't 
appear on the desktop until she logs out and back in...  Is gnome known to 
be like this?  We have only used KDE for years and are not too familiar with 
gnome.

Any help to remedy this are welcomed.  Thanks,  Jim