Folders displaying in a strange way, dual display monitor problem?

[Mat MireMare]

Hi all, I'm a new convert to Ubuntu - I decided to add it as a dual boot to my Windows 7 machine but it messed up the Windows 7 (not available at boot). Instead of worrying about that I decided to go in deep and see if I could just live with Ubuntu instead, in my work environment too, so far so good, I'm loving Ubuntu.

I only have one problem that I hope somebody can help with, I use two monitors in a dual screen setup - both Samsung SyncMaster BX2335 screens.

I have an Nvidia graphics card GEForce 8600GT

The dual screen is working but I am getting display error messages when I boot up, also under 'Displays' no monitor is detected, even if I hit Detect Displays.

EDIT - just noticed that if I log in a Guest everything works perfectly! :/

So it's kind of working, but folders and files are shown in a very basic way with no styling, all grey and basic looking.

This is my xorg.conf file - hope somebody can help.;

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 280.13 (buildd@allspice) Thu Aug 11 20:54:45 UTC 2011

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Samsung SMBX2335"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection

Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "Samsung SMBX2335"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 75.0
Option "DPMS"
# HorizSync source: edid, VertRefresh source: edid
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "TwinViewXineramaInfoOrder" "CRT-0"
Option "metamodes" "CRT-0: 1920x1080 +0+0, CRT-1: 1920x1080 +1920+0"
# Removed Option "TwinView" "0"
# Removed Option "metamodes" "CRT-0: nvidia-auto-select +0+0"
# Removed Option "metamodes" "CRT-0: nvidia-auto-select +0+0, CRT-1: nvidia-auto-select +1920+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "CRT-1: nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
# generated from default
EndSection

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8600 GT"
Option "NoLogo" "True"
EndSection

Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8600 GT"
BusID "PCI:5:0:0"
Screen 1
EndSection

[Mat MireMare]

Solved.

For anybody else having this problem, I fixed it by downloading GNOME Tweak Tool - I then went into Desktop under Advanced Settings and turned off 'Have file manager handle the desktop' - I then turned it back on again and after a few seconds the theme reset itself and the folders no longer look like Windows 3.1 - no more error codes either.