Gnome forcing it's startup settings on KDE4

[p.daniels]

New 8.04 install on my laptop, some problems running Gnome concurrent with 
KDE4.

1. I expected the menus to be a mess (see the thread Kubuntu vs. Ubuntu with 
KDE, if I'm remembering the title correctly), but when I edit the menu in 
Gnome (with Gnome's hideously ineffective menu editor) it also mucks with the 
KDE menu.
2. Gnome's startup programs are "infecting" KDE, but not vice versa. So for 
instance, all my Screenlets are trying to start in KDE, and Tilda is trying 
to start at the same time as Yakuake (with both mapped to the Pause key). 
Chaos ensues.

Does anyone know a workaround for these issues? Should I expect the same 
behavior if I install XFCE or KDE3?

best-
p.