upgrade using aptitude

[Qi Qi <qiqi789@gmail.com>]

Hi there,

I have been using debian unstable. After debian 6.0 released, aptitude
upgrading asks me to remove gnome, gnome-core, and
gnome-desktop-enviroment,etc. Is it saying that I have to remove those
and reinstall them back, or removing gnome can be avoided. 

I tried different resolutions provided in aptitude for dependency conflicts. But
it seems all of the proposals asks for gnome removal. Is it normal
during the transition of debian upgrading time?

Thanks.

-- 
Qi Qi