hp pavilion N5450

I have recently bought an HP pavillion notebook and installed redhat
7.0. When I ran Xconfigurator, the only combination which did not give
me an error is 8bit color option which results in extremely large font
and only the middle 1/4 of the screen is used and the rest is blank.
Any idea why and what can be done about it. here is the specs for the PC

                      Mobile Intel® Pentium® III processor 850MHz, with
Intel® SpeedStep™ technology for
                      battery life optimization

                      128MB SDRAM for multitasking power, expandable to
512MB

                      15" XGA TFT display

                      20.0GB hard drive

                      DVD-ROM/CD-RW combo drive

                      S3 Savage IX 128-bit AGP 2X graphics card, with
8MB dedicated SGRAM video memory

                      Built-in 10/100 Ethernet networking card

                      V.90 high-speed modem

                      High-capacity LiIon battery

                      Built-in dual Polk Audio stereo speakers

                      Weighs 7.5 lbs./1.65" thin for easy portability

                      Intel, the Intel Inside logo, Pentium are
registered trademarks and Pentium III Xeon,
                      Pentium II Xeon, Celeron, MMX are trademarks of
Intel Corporation.

                     PRODUCT DETAILS
                                       N5450
                    Processor Brand
                                       Mobile Intel® Pentium® III
processor
                    Processor Speed (MHz)
                                       850MHz
                    Display Type
                                       XGA (1024 x 768) TFT
                    Screen Size
                                       15"
                    System Bus
                                       133MHz
                    Cache Memory
                                       32KB L1 cache + 256KB L2 cache on
die
                    System Memory (RAM)
                                       128MB
                    System Memory (RAM)
                    Expandable To
                                       512MB
                    Type of Memory (RAM)
                                       SDRAM
                    Hard Drive Type
                                       Ultra DMA
                    Hard Drive Size
                                       20.0GB
                    CD-ROM Drive
                                       No
                    Maximum CD-ROM Drive
                    Speed
                                       No CD-ROM drive
                    DVD-ROM Drive
                                       Shared
                    Maximum DVD-ROM Drive
                    Speed
                                       6x
                    CD-RW Drive
                                       Shared
                    CD-RW Drive Speeds
                                       4x4x24
                    DVD-ROM/CD-RW Combo
                    Drive
                                       Yes
                    DVD-ROM/CD-RW Combo
                    Drive Speeds
                                       6x DVD-ROM; 4x4x24 CD-RW
                    Diskette Drive Type
                                       3.5" 1.44MB
                    Video Memory
                                       8MB
                    Diskette Drive
                                       Yes
                    Graphics
                                       S3 Savage IX 128-bit AGP 2X
graphics with 3D hardware
                                       acceleration, composite TV-out
support, simultaneous
                                       display capability
                    MPEG
                                       Yes
                    Modem
                                       56 Kbps* ITU V.90 *Capable of
receiving 56 Kbps
                                       downloads. However, current
regulations limit download
                                       speed to 53 Kbps.
                    Networking
                                       Built-in 3Com mini-PCI 10/100
Ethernet (network/modem
                                       combo)
                    Audio
                                       16-bit SoundBlaster
Pro-compatible with dual built-in stereo
                                       speakers and acoustic chamber by
Polk Audio
                    Speakers
                                       Built-in stereo speakers
                    PCMCIA Slots
                                       2
                    USB Ports
                                       2
                    Parallel Ports
                                       1
                    Serial Ports
                                       1
                    Gameports
                                       0
                    Battery Type
                                       Lithium-ion (LiIon)
                    Pointing Device
                                       Touchpad on palm rest with on/off
and up/down scroll keys
                    Operating System
                                       Microsoft Windows Millennium
Edition
                    Included Software
                                       Microsoft Encarta World
Encyclopedia Online; HP
                                       Speedway, Space Rocks, Checkers
and Blasterball 3D
                                       games; Easy Internet Signup;
Earthlink; Prodigy; AT&T
                                       WorldNet; AOL; MusicMatch MP3
Player; Microsoft Money
                                       2001; QuickLink III fax software
and more

regards
anoosh