wine users - May 2011 - Wine in virtual desktop for a specific program only

Hi folks!
I'm trying to run a windows application in wine, using a virtual desktop.
I want this featur for a specific program only, and if I try to set this via
winecfg, it doesn't work!

I have unchecked the virtual desktop option in the Graphic panel (in winecfg)
for global settings, and I have added the application that I want to start in a
virtual desktop. Therefore I've checked virtual desktop for this particular
application.

It doesn't work.

If I try to start the application via terminal:


Code:
wine explorer /desktop=abalaba,1024x768 app.exe



it opens a new virtual desktop, but my application doesn't start!

Help me, please!

yea could be broken?...I try the same now for FSX.