Apps :: vnc background not permanent in v4+

I use vnc alot as dsl works great as a one4all solution sitting in my attic, i have 2 vncservers running thus:

vncserver -geometry 1024x768 depth 24 :1
vncserver -geometry 800x600 depth 24 :2

and all works well, however since v4 the background desktop does not appear and has to be set manually from within vnc.
this is not the end of the world, but is there any way i can automate it, was something moved and requires a link.

also is there a way to start an application in vnc:2 only, i understand that ~/.vnc/.xstartup will open an app, but i need something specific to a single server. any suggestions?

<edit>
#found the second solution
export DISPLAY=:1 ; beaver ; #for vnc1
export DISPLAY=:2 ; beaver ; #for vnc2
</edit>

original here.