There are several possible error sources:

• The application has been installed after Remote Buddy has already been launched

  For efficiency reasons, Remote Buddy only searches for supported applications when its started. If you have installed an application after launching Remote Buddy, please quit Remote Buddy and launch it anew.

• Oudated program versions

  The installed version of the program in question could be outdated and identify itself with a different Bundle Identifier than the version supported by Remote Buddy. This problem often occurs with Mplayer OS X. The most recent version of that application is not to be found on Sourceforge but on directly on the pages of Mplayer HQ.

• Custom menus

  If you use a custom menu in Remote Buddy and you don't make use of Remote Buddy's smart folders, the menu structure is static. You have to manually add the behaviour into a place of your choice in the menu.

• The behaviour is deactivated.

  Make sure, the checkbox in front of the Behaviour's name in the Mappings pane of the preferences is active.

• The Launch Services database is outdated.

  Remote Buddy uses Launch Services to check for the availability of an application on your Mac. If the Launch Services database of OS X is incomplete or outdated, so is Remote Buddy's dynamically created menu. The solution, though is easy. Download LSRefresh, launch it, select the application(s) that don't turn up in Remote Buddy's menu, wait until the update is finished and then restart Remote Buddy.

To enable you to use all capabilities of the IR Receiver of your Mac®, Remote Buddy is using its own driver. In contrast, all other applications with integrated Apple® Remote support usually use the OS X Apple® Remote subsystem.

As long as you're running Remote Buddy, Remote Buddy and its driver are responsible for turning the received button presses into actions. As soon as you quit Remote Buddy, this task is again handled by the OS X Apple® Remote subsystem.

If other applications don't use the interface to the OS X Apple® Remote subsystem correctly, this can lead to the effect that nothing happens when you press a button on your Apple® Remote. For as long as you're running Remote Buddy, issues like this are covered by Remote Buddy and it's driver and are therefore not visible to you. However, as soon as you quit Remote Buddy, the OS X Apple® Remote subsystem is back in control and any issues caused in it by other applications become visible.

Therefore Remote Buddy is neither the cause of the issue nor is it responsible for it. Instead, the cause of the issue exists independently of Remote Buddy. It's located elsewhere and can also only be solved there.

Although our products can't cause any such issues, we're regularly contacted about such issues and asked for help. In order to make locating and fixing the cause of such issues as easy and efficient as possible, we've developed a free diagnostics tool: Remote Control Diagnostics. It can locate issues with a single click and will provide you with information about the issue as well as with instructions on how you can fix it.

It's impossible to determine the position of the remote control - and thus also moving the mouse cursor - without at least one of these infrared lightsources.

When using the game console, the so called sensor bar is supplying this IR light source. The name is a bit misleading, as it does not contain any sensors at all, just IR diodes, that emit light in the IR spectrum - which is invisible to the human eye.

If no sensor bar is available to you - or if the IR diodes in it are currently turned off, another infrared light source is required. Infrared radiation is also called heat radiation. Simply said, when there's heat, there's infrared light, too. Using this physical phenomena, you can also use very hot objects as infrared light source - whereas f.ex. tealights and candles are especially predestined. Always make sure to exclude the possibility of a fire and any other risks, when using burning candles, tealights or very hot objects,

An infrared receiver can not be used as infrared lightsource. It can only receive, not emit infrared light.

TV sets and monitors don't create light in the infrared range that would be strong enough, either.

In order to use the infrared mouse mode, you have to point your remote control to the IR lightsource. You can easily check, whether this source is strong enough by having a look at the options of your remote in Remote Buddy's preferences (in the Hardware tab). There, all light sources recognized by the IR sensor are displayed for as long as the IR mouse mode is active.

You can find more information on infrared light on f.ex. Wikipedia (Link to external article).