Cannot set second screen beside first screen

[Dotan Cohen]

I have a Dell Inspiron 6400 / 1505E with 1680x1050 built-in LVDS and
external VGA connected to a 1680x1050 LCD monitor. I can get the
external monitor to mirror the regular display, but I cannot put them
side-by-side with the KDE System Settings tool.

The KDE System Settings tool sees the external VGA monitor as the
"first" monitor and the built-in LVDS as the "second". When I
configure the LVDS to the right of the external VGA monitor, the LVDS
goes blank. When I configure the LVDS to the left of the external VGA
monitor, the external VGA goes blank.

What must I do to get these monitors configured?

I'm using Kubuntu 9.10, KDE 4.2.2. Thanks.

-- 
Dotan Cohen

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