It might be necessary to reset the X.mio2 Plus board. This needs to be done for example when Viz Engine reports:

• "0xefac9019: Generic driver error: The requested operation was unsuccessful" at startup.

• "0xeddd8008: Topology driver error: Watchdog specified already in use by another application." at startup.

• "VideoClipInOut_Xmio2Plus::SequenceVideoOut SequenceVideoOut no output node." during operation.
  For this a reset mechanism has been implemented for the Viz Engine. To activate this mechanism, do this procedure:

1. Stop all Viz Engines (in dual channel setups both Viz Engines must be stopped).

2. Open the Viz Configuration file.

3. Set Matrox0.ResetTopology = 1.

4. Start up the respective Viz Engines.

   Note: The Matrox0.ResetTopology setting will be automatically set back to 0 after the reset has been performed

   The reset feature also clears the on-board memory of the X.mio2 Plus board. This operation removes all Matrox X.RIOs and their topologies from the on-board memory.

After the reset everything will be restored automatically according to the configuration settings. This also applies to both Viz Engines in a Dual Channel setup.