Black screen but the xorg.log.0 don't have any error

Question

I have a motherboard asus m4a78t-e with ati radeon hd 3300 video chip
and monitor samsung syncmaster 2333 with vga and dvi port I use the dvi port.
I have a strange behavior when ArchLinux start
Firts at all, the grup, next the boot secuence and when start the xorg I have a black screen , at firts I thought that the xorg was the guilty but when I saw the xorg,log.0(I start in console mode) and didn't find any error
I started the xorg and again black screen.
then I pressed crtl-alt-f1 without see nothing in my screen
and logme in  at root and  wrote "shutdown -h now" and my pc turn off
all this with my screen in black(for me this mean that the pc is not frozen).
I started the pc with x system and black screen, again .
The monitor have  vga and dvi port. I use the dvi port. Trying diferent things I discovered that my monitor have a function to change between vga and dvi port and when the x system star with the black screen I press the monitor button, change to vga and then press again to change vdi and buala I have my kdm screen.
The problem is that I must to do this every time that start my pc or restart the x system for example when I logout.
I use the last kernel 2.6.32-ARCH and xf86-video-ati 6.12.4-3 and xorg-server 1.7.3.902-1 I suse hal, don't have xorg.conf file. The problem started after the update the xorg version from 1.6 to 1.7 approximately 2 Months ago.
Any suggestion?

Answer 1

Your "Vout" is a control, not an indicator. Nothing ever writes to it. Your FOR loop just pumps hot air and does not produce any output.
Calling an output of the formula node "Vout" is completely independent and does not magically write to an array control with the same name.
(What's the purpose of "R2" and "R2 2", seems redundant. Also learn about autoindexing. All your terminals belong before the loop, they need to be read only once)
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