Cannot st maximum refresh rat

Acer produces a number of LCD computer monitors. Acer's monitors range from 17 inches to 27 inches. Some monitors offer wide-screen viewing, embedded speakers, high-definition visuals, and various display connection ports. Acer computer monitor problems include common issues such as dead pixels, error messages, and blank screens caused by incorrect connections. Some reviewers have also detected image problems with DVD playback on some models.

"Input Not Supported" Error Message Acer computer monitors such as the G24 may issue an "Input Not Supported" error message when users set the display resolution too high. The G24's maximum display resolution is 1920x1200 with a 60Hz refresh rate. Maximum resolutions vary according to the specific monitor model and according to the capabilities of the computer's video card. b> "Input Out of Range" b> Some Acer computer monitors may report an "Input Out of Range" error message due to incorrectly set monitor refresh rates. Much like the display resolution, each monitor also has specific monitor refresh rates with which it is compatible. Blank Screen or "No Signal" Error b> Like other monitors, Acer computer monitors feature color-coded power indicator lights. If the power indicator light shows green, the contrast or brightness levels may be set too low and should be adjusted via the OnScreen Display. If this does not rid the monitor of a black screen, the monitor may be experiencing hardware failure. The "No Signal" or "Check Cable message" may indicate a problem with the monitor's cable connection with the video card. This error may also appear on a blank screen backdrop if the monitor is plugged into the incorrect port on the computer or if the computer is frozen and needs to be rebooted. Faulty power cords or outlets may cause the screen to be black and to show no power indicator color. b> Image Issues b> Some review sites such as CNET have reported problems with streaking and ghosting during DVD playback on some Acer computer monitors such as the AL1931. (A "ghost" is an identical offset image as the primary or desired image.) Unstable or unclear image issues may be caused by incorrectly programmed VGA timings or incorrectly installed monitor drivers. b> Dead Pixels b> Dead pixels and sub-pixels can cause a variety of display enjoyment problems. Acer will only accept returns on LCD computer monitors that have "more than four (4) defective pixels per million pixels." Further, the central area of the monitor may have no more than one defective pixel. Acer does not differentiate in warranty terms between pixels and sub-pixels. Hope this helps.

The maximum resolution supported is 1280 x 1024 pixels at 65 Hz refresh rate, while the recommended resolution stands at 1024 x 768 pixels at 85 Hz. However, the maximum usable resolution is 1152 x 864 pixels at 75 Hz. Maximum usable resolution signifies the maximum resolution supported by a monitor at a refresh rate of 75 Hz or better. Though 85 Hz is an ideal refresh rate, 75 Hz is the lower limit. Any refresh rate, lower than 75 Hz, will give a flickered output and can cause some serious eye damage after prolonged usage...i hope this helps.

The default is 60Hz (60 cycle, not 60MHz (60 million cycle) for Vertical refreshing rate.
From user manual:

"For the best picture quality set your LCD display timing mode to:
VESA 1280 x 1024 @ 60Hz. "
and here is the warning:

"WARNING: Do not set the graphics card in your computer to exceed the maximum refresh rate of 75Hz; doing so may result in permanent damage to your LCD display."
http://www.viewsoniceurope.com/uk/support/downloads/user-guides/?keyword=VG910&x=17&y=5

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Hi u3salkar, What the warranty covers:ViewSonic warrants its products to be free from defects in material and workmanship during the warranty period. If a product proves to be defective in material or workmanship during the warranty period, ViewSonic will, at its sole option, repair or replace the product with a similar product. Replacement Product or parts may include remanufactured or refurbished parts or components. The replacement unit will be covered by the balance of the time remaining on the customer's original limited warranty. ViewSonic provides no warranty for the third-party software included with the product or installed by the customer. Check this link ....http://www.viewsonic.com/support/warranties/limited-warranty/
Hope it may helps:
Regards; VOTIT

http://www.viewsonic.com/support/downloads/

Make sure you have the latest drivers for your monitor installed.

1. maybe the problem is with windows, because the refresh rate is set to an acceptable value

2. your lcd screen runs at higher hz than 60

3. you are running a resolution higher than 1024x768 15" LCD's generally can only support 1024x768 whereas larger panels support higher resolutions.

Possible solutions

1. The LCD you buy is shipped with a plastic cover over the screen which shows maximum resolution and recommended refresh rate. When you first turn on your computer press F8 to access safe mode, after you enter safe mode, configured the required setting on your lcd monitor. when you are done, reboot or restart your computer, hopefully your computer should be fine.

2. attempt to access the bios setup utility by pressing del or f2 of your keyboard after you see the initial display of your pc, if you can see it, the problem is with windows because the refresh rate is set to an acceptable value. Set it to its required settings by entering safe mode as posted on no.1


http://lcdmonitor-repairsecrets.url-Go.com

check your vga/dvi cable connection at both ends, computer and monitor

Plug it in to your PC/laptop. Windows should recognise it and assign it basic drivers. Go into Control Panel, Display to change the resolution and refresh rate to what you want. No real need for manufacturer specific drivers but you can probably download them from viewsonic if you want.

Hi, Even if it is refreshing, shouldn't be that noticeable. One possible reason is not enough memory in your video card for which you can try compensate by increasing the Graphics Aperture Size in your CMOS/BIOS setup. Normally it should be twice of your on-board/add-on video card memory. Another possibility is your LCD monitor is showing signs of pending problem which could either be the CCFLamp, the inverter that powers it or the video interface. Some models of Viewsonic are known to have inverter failures. Specifically, the capacitors are overheating and would need replacement. In some instances, it is the lamp that goes or still others are simply cold solder joints. Hope this be of some help/idea. Post back how things are or should you need additional information. Good luck and kind regards.