I am running Xming Server on my Windows PC and using PuTTY with the "Enable X11 forwarding" box checked to access my Linux (Fedora) PC. This works like a charm, with graphical utilities like gvim, glade, etc. opening up in their own windows.

However, I recently extended my Windows desktop onto a second monitor, and, when I drag one of these windows over to the new monitor, the window becomes blank.

How can I get these windows to render on the new monitor?