Problem : Keyboard / mouse won't move the cursor on the screen, or mouse movement becomes erratic or flips around.

Solution :
Check the following points to troubleshoot your keyboard / mouse problem :

(1) Connect your keyboard and mouse to the KVM Switch only when the PCs are in powered-off state. Otherwise, you have to reboot your PCs.

(2) Verify that your keyboard / mouse and the computer are all properly connected to the KVM Switch. If not, connect them properly and reboot the computer again.

(3) Do not install mouse driver from the vendor, instead use the standard driver provided by your OS. If you have already installed driver form manufacture, you might consider to uninstall it.

(4) If the above procedures still fail to troubleshoot, try to plug off all cables and external power from your KVM Switch and then plug on again for a reset. Then try to reboot your computers.

(5) Also refrain from plugging on/off the keyboard / mouse cable while the PC is still running. Once it comes unplugged, even if you plug back again in short time, you might have to reboot your PC to resume the normal keyboard / mouse connectivity.

(6) Also check the specifications of your KVM Switch to see whether it requires special KVM cables for connection with computers. If so, use the cable that is required by your KVM Switch.

If you have checked all the above and still your keyboard / mouse does not work, please contact your local technical support.

According to feedbacks from customers and also our own service experience, most mouse failures are caused by inadvertently switching to other PC port while a specific PC port still undergoing the booting process. The cause of the mouse failure over that specific PC port lies in that port switching to other PC port, while a PC port has not completed its booting process, sometimes will cause the mouse emulation for the latter to be interrupted and hence fails. Therefore, try to avoid switching port while a specific PC port has not completed its booting (specifically mouse emulation during booting process). Wait until it has completed booting to the OS environment, and then perform the port switching to other PC ports.

Video Display Problems

Problem : The screen won't show properly on my monitor or flat panel display.

Solution :
Check the following points to troubleshoot your screen display problem :

(1) Verify that your video cables have connected properly between KVM Switch and the PC and also between the KVM Switch and the monitor.

(2) Check that the video setting of the computer does not exceed the highest resolution support of the KVM Switch. If you choose a resolution that is beyond the video support of the KVM, the screen on your local console might show up as blank or striped screen due to out-of-range or out-of-sync. If that is the case, modify both the screen resolution and frequency as within the support range of your KVM Switch.

Problem : My screen shows excessive ghosting, speckles or stripes.

Solution :
Check the following points to troubleshoot your screen display problem :

(1) Ghosting and / or stripes on screen is probably due to excessive electromagnetic interferences from external environments that come to compromise video signal integrity. Check the entire path of your video cable layout and see whether there is any undue presence of a strong electromagnetic source such as large motor, power cable or other significant electromagnetic source. If there's any, remove it or try to route your video cables so as to avoid or minimize its interference.

(2) Some older monitor might show inferior display screen when using a screen mode that is beyond its normal support range. If that is the problem, try to use another screen mode that is ''friendlier'' to your monitor.