Using the viewer window
The viewer window gives you the ability to view and control the AdderView CATxIP 5000 and its host computer(s). Its operation is almost identical regardless of whether you used the VNC viewer or your Web browser to display it.
The menu bar
The viewer window presents a menu bar similar to that shown below. Certain items within the toolbar are displayed depending upon your access permissions and/or the AdderView CATxIP 5000 configuration.
Viewer options | Ctrl Alt Del | Controls | Power | Dialogue area |
(VNC viewer | Sends the | Displays a menu | Click to access | Indicates your username |
only) Click the | Ctrl Alt Del | of options | the power | and the host system that |
VNC icon to | sequence | concerning | on/off options | you are currently viewing. |
view the viewer | to the | keyboard, video | for the current | This area can also display |
window options. | current host | and mouse | host computer. | other messages. |
| computer. | operation. |
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| Auto calibrate | Hosts | Access mode | Configure |
Ensures that the | Determines the | Click to | Allows you | This option is only |
mouse pointer | optimum video and/or | display a list | to choose | available to the |
which you move | mouse settings for the | of computers. | between | admin user and |
and the mouse | currently selected host | Choose an | Shared and | provides access |
pointer on the | computer. This button | entry to | Private access | to the main |
host system | will flash red when | connect to | modes. | configuration |
are correctly | a new host screen is | that host |
| menus. |
synchronised. | encountered. Click this | computer. |
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| button when you first |
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| visit a new screen. |
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IMPORTANT: Optimal performance of the AdderView CATxIP 5000 is dependant on the calibration of the video for each host computer. For this reason, if you view an uncalibrated host, the unit will invoke an automatic calibration after a pause of roughly twenty seconds.
If the video is not calibrated the unit can operate slower than expected and will affect all users. If you experience a drop in performance on the VNC viewers, try recalibrating your viewer as a first step. Click the Auto calibrate button or access the Video settings option from the ‘Controls’ button.
When using the viewer window
What is the best screen resolution to use?
The best resolution for your computer is one that is larger than the screen of the host computer that you are viewing. This will allow you to see everything without scrolling around. Alternatively, the VNC viewer can be set to scale the image to fit your screen, but remember that some pixel dithering effect will be seen when scaling is used.
How do I navigate around a larger screen?
If the screen that you are viewing has a larger resolution than your viewing window you will need to scroll around to see all items. The viewer window allows you to ‘bump scroll’ (only in full screen mode). This means that when your mouse cursor bumps against the edge of the screen, the screen image will scroll across automatically.
How do I escape from full screen mode?
Press the F8 button. This button is changeable but is most often set to F8.
Why is the 
button flashing red?
This happens when a new host screen is viewed (that has not been viewed before). Click the 
button to perform an auto calibration for the screen and the mouse. See Auto calibrate for important information about this feature.
How do I change between host computers?
You can either click the ‘Hosts’ button to select a host by name (see Host selection) or use hotkey presses to choose a host by its port number (see VNC Hotkey selection).
How do I remove traces of moved items from the screen?
When you move an item or window across the screen, sometimes it can leave unsightly trails. These are called artifacts and can be particularly prevalent when the connection speed is low. To remove artifacts, click the ‘Controls’ button and select the ‘Refresh screen’ option. See Controls.
How do I make the most of a slow connection?
The VNC viewer is slightly better suited to slower connections than the browser viewer because it offers more options. Click the Options button of the VNC viewer when entering the AdderView CATxIP 5000 address during log on.
Adjust the Threshold setting
Ensure that the video Threshold setting is set higher than the automatic setting suggests. Tweak this setting manually to ensure the best setting.
Fewer colours
Select the Low (64 colours) mode. The Very low option offers hardly any improvement and looks a lot worse.
Rate limit mouse events
When selected, this mode greatly reduces the mouse movement data that are sent to the host computer. When you move the local mouse, the remote cursor will catch up roughly once per second.
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