QUOTE(~Winter~ @ Nov 18 2009, 09:48 AM)
Im using Vista, my windows 7 cd haven receive yet

Yup i've tried both with ATI CCC and also the personalization display settings there.. I cant find the resolution for 1680, there is only 1280 and 1920, even when i play games, there are no 1680 or 1600 resolution choices, only 1280 and 1920
My external LCD is samsung 2253 BW, i have the drivers installed too since it came with a CD... The VGA cable was used by my bro to connect to his sony TV n it worked properly, so i tink its not the cable problem..
Ok i've tried reading around online to see if I could find a solution to your issues. Here are some of the things I found out:
1. Issue could be likely due to incorrect EDID information set in the monitor by the manufacturer. EDID tells the computer what resolution to run at and a bad EDID would limit the resolutions. Have you tried the monitor with another laptop or PC to see if the same problem occurs? If so, then definitely bad EDID. Sometimes bad EDID would also show the monitor being listed as different models which you can check from Device Manager.
Some folks have actually recommended installing PowerStrip to override the EDID problem. Frankly I have not tried it so I do not know the risks and whether it will work for. You will need to run at your own risk. Quoting from the forums:
Download powerstrip.
Install powerstrip.
Run power strip as an admin user.
Select the display profiles->configure option from powerstrip menu
Click the advanced timings button from this window.
Select custom resolutions from the new window that appears.
Scroll down the list until you find the 1680 X 1050 X 60 Hz option.
Click the add resolution button.
After powerstrip warns you that you may have selected an incorrect resolution you will need to reboot.
You should after rebooting the machine have access to the native res of the 226BW which is 1680 X 1050.http://forums.whirlpool.net.au/forum-repli...fm/1207444.html2. Monitor drivers are not updated properly.
Right click Desktop -> Screen Resolution -> Select monitor from drop down list -> advanced settings -> Select "Monitor Tab" -> Click Properties -> Drivers Tab -> See who the driver provider is. If its a Samsung driver, i would figure it would say Samsung there. If not, Click Update Drivers -> Browse -> Insert the manufacturer cd -> search and install from there.