Recently I bought viewsonic VA1918wm wide monitor.Now the problem is I am unable to get the 1440X 900 resolution. my motherboard and BOIS details are given below

Field Value
Motherboard Properties
Motherboard ID 10/08/2003-SiS-740-6A6IYB0AC-00
Motherboard Name Biostar M7SUA

Front Side Bus Properties
Bus Type DEC Alpha EV6
Bus Width 64-bit
Real Clock 133 MHz (DDR)
Effective Clock 267 MHz
Bandwidth 2133 MB/s

Chipset Bus Properties
Bus Type SiS MuTIOL
Bus Width 16-bit

Motherboard Physical Info
CPU Sockets/Slots 1 Socket 462
Expansion Slots 3 PCI, 1 AMR
Integrated Devices Audio, Video, LAN
Form Factor Micro ATX
Motherboard Size 190 mm x 230 mm
Motherboard Chipset SiS740

Motherboard Manufacturer
Company Name Biostar Group

Field Value
BIOS Properties
BIOS Type Award
Award BIOS Type Phoenix - AwardBIOS v6.00PG
Award BIOS Message SUA1008 BS
System BIOS Date 10/08/03
Video BIOS Date 03/08/20

BIOS Manufacturer
Company Name Phoenix Technologies Ltd.

as per manufaturer web site I should upgrade my vbois(ver 1.09.00) to 2.28.00 or later.Now no where I am getting the update version.Can any body help me?

You can right click on my computer under start menu and click properties > Hardware tab > then click device manager. Under display right click your video driver and click update driver. that might help you.