Perfect Install Except-1/4 screen display issue - possible AcerAspire Driver Issue

[usbboot]

Hi Folks,
Running an Acer Aspire 4520 (sysinfo report info) I am able to live usb boot bt5. All systems seem to function properly except the desktop display area is only 1/4 of the screen size - the entire system is functioning normally in a little box centered in the top left corner of the laptop screen. Seems this may be a display, likely driver issue, but being new to linux, i really dont know where to start troubleshooting. I think i have provided all specs via sysinfo log, and i included the xorg.conf file which is giving me the clue that this is likely a display driver issue. Please let me know if ubuntu is capable of running error free on a system with my specs, in searching for a solution i uncovered reports that acer aspire's dont run linux, ubuntu, hence bt5 either. If an install is needed, please provide as much detail as possible, i am new to linux. Thanks much in advance.

xorg.conf file -

Section "Files"
FontPath "/usr/share/X11/fonts/misc"
RgbPath "/etc/X11/rgb.txt"
EndSection
Section "ServerFlags"
Option "AllowMouseOpenFail"
EndSection
Section "Module"
Load "bitmap"
Load "dbe"
Load "ddc"
Load "extmod"
Load "freetype"
Load "int10"
Load "record"
Load "vbe"

EndSection
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "keyboard"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Generic Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
EndSection
Section "Device"
Identifier "Generic Device"
Driver ":RIVER::"
EndSection
Section "Monitor"
Identifier "Generic Monitor"
Option "DPMS"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "Generic Device"
Monitor "Generic Monitor"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 4
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 15
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 24
Modes "1024x768"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Generic Keyboard"
InputDevice "Generic Mouse"
EndSection
__________________________________________________ ____________________________
sysinfo report info:
System information report, generated by Sysinfo: 12/18/2011 1:34:15 AM
http://sourceforge.net/projects/gsysinfo

SYSTEM INFORMATION
Running Ubuntu Linux, the Ubuntu 10.04 (lucid) release.
GNOME: 2.30.2 (Ubuntu 2010-06-25)
Kernel version: 2.6.38 (#1 SMP Thu Mar 17 20:52:18 EDT 2011)
GCC: 4.4.3 (i486-linux-gnu)
Xorg: unknown (08 March 2011 08:22:50AM)
Hostname: root
Uptime: 0 days 10 h 49 min

CPU INFORMATION
AuthenticAMD, AMD Turion(tm) 64 X2 Mobile Technology TL-64
Number of CPUs: 2
CPU clock currently at 800.000 MHz with 512 KB cache
Numbering: family(15) model(104) stepping(2)
Bogomips: 1600.24
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow extd_apicid pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch lbrv

MEMORY INFORMATION
Total memory: 2769 MB
Total swap: 0 MB

STORAGE INFORMATION
SCSI device - scsi0
Vendor: Optiarc
Model: DVD RW AD-7530B
SCSI device - scsi4
Vendor: ATA
Model: Hitachi HTS54251
SCSI device - scsi2
Vendor: TOSHIBA
Model: TransMemory
SCSI device - scsi3
Vendor: Seagate
Model: FreeAgent Go

HARDWARE INFORMATION
MOTHERBOARD
Host bridge
Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
PCI bridge(s)
nVidia Corporation MCP67 PCI Bridge (rev a2) (prog-if 01)
nVidia Corporation MCP67 PCI Express Bridge (rev a2)
nVidia Corporation MCP67 PCI Express Bridge (rev a2)
USB controller(s)
nVidia Corporation MCP67 OHCI USB 1.1 Controller (rev a2) (prog-if 10)
nVidia Corporation MCP67 EHCI USB 2.0 Controller (rev a2) (prog-if 20)
nVidia Corporation MCP67 OHCI USB 1.1 Controller (rev a2) (prog-if 10)
nVidia Corporation MCP67 EHCI USB 2.0 Controller (rev a2) (prog-if 20)
ISA bridge
nVidia Corporation MCP67 ISA Bridge (rev a2)
Subsystem: Acer Incorporated [ALI] Device 0127
IDE interface
nVidia Corporation MCP67 AHCI Controller (rev a2) (prog-if 85 [Master SecO PriO])
Subsystem: Acer Incorporated [ALI] Device 0127

GRAPHIC CARD
VGA controller
nVidia Corporation C67 [GeForce 7000M / nForce 610M] (rev a2)
Subsystem: Acer Incorporated [ALI] Device 0127

SOUND CARD
Multimedia controller
nVidia Corporation MCP67 High Definition Audio (rev a1)
Subsystem: Acer Incorporated [ALI] Device 0127

NETWORK
Ethernet controller
Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01)
Subsystem: Device 1a32:0105

[maverik35]

It seems to me like the nv driver (default install) has issues with nVidia, as far as I know, I had to remove the nv driver, blacklist it and install the nvidia driver for my nvidia card.
Go to nvidia home page and download the proper linux driver for your card, boot, go to console, remove the nv driver, black list it and install the nvidia driver you downloded.
Restart the X's or just reboot...

Hope it helps....

[usbboot]

Thanks for adding a brain here maverik35, like i said i suspected a display driver issue. I found Nvidia's linux drivers for my display, but when i try to install from gnome terminal window, i get an error referencing "can not install in x server". So i tried running from BT5 startup root prompt terminal(without startx gnome) - copied .run driver file to usb boot stick, put it in a couple folders etc, usr, and a few others, since external drives and gnome desktop are unavailable from BT5 startup root prompt, and i was not sure what would be available to access. Followed Nvidia instructions for installing drivers, .run not executable from startup root prompt. I will try to upload screen shots of errors when i get a chance. To any senior members.......notice many discussions of nvidia display BT5 problems - no tutorials or concrete proven fixes????