I have an Asus M6000 laptop that gives me two problems:
1. when attaching a separate monitor to the VGA-slot on the back, I get a copy of the picture I see on the laptop screen (as it should!). Then, as root I enter into monitor management (sorry, my F7 is in Dutch, so the correct term is probably different in English) and activate dual head, giving the screen size and resolution of the external monitor. after OK, I get the order to restart X for the change to take effect. After having done this by logging out and again logging in, the laptop screen remains black and only the external monitor shows a picture. After restarting the laptop without the external monitor all is back as it used to be.
The video card in this laptop is a ATI Technologies RV350 [Mobility Radeon 9600 M10]
Has anybody an idea how to use the external monitor in order to enable an extended desktop?
I have tried to see whether I could change /etc/X/xorg.conf but did not find a way to do this.
I hoped fedora 8 would solve this problem, but see below:

2. I have downloaded fedora 8, burned this on a disk and used the disk to install on a desktop. No problem. I took the same disk to my Asus (dual boot with Windows XP) and started up from the disk and chose the option "upgrade an existing system". the system began collecting installed packages end thereafter checking dependencies. about 40% through this the system hangs completely (no mouse action either) and only using the on/off button  of the laptop gives any result.

B.