[CentOS] TwinView (on NVIDIA graphics card)?

Hi,
 
Is anyone here using TwinView with NVIDIA graphics drivers under CentOS
5? Just tried this configuration (I've been using dual monitors as
separate X screens in the past), and while it works in a sense, there
are a few issue that will probably prevent me from using it for real.
Notably, which screen new applications start on (when using the
Applications menu or panel launchers) seems to be quite arbitrary. I
expect windows to open on whichever screen I initiated their creation, I
suppose, but they will often  appear on the other one. This is using the
GNOME desktop.
 
Another slight issue is with the notification icons. I really want to
display duplicates of these, so I can view them on both screens, but is
seems like the Notification Area doesn't work this way, i.e. it will
never display more than one of each icon even when there are several
instances of the area. But this is a problem I also have when using
separate X screens.
 
So, what are other people's experiences with a dual monitor setup?
 
- Toralf
 

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