Please follow these instructions.
1. Open RealPlayer.
2. Click the RealPlayer logo, then Preferences.
3. In the Category pane, select Hardware.
- Under Video Card Compatibility, move the slider bar Most reliable.
- Click OK twice to save the changes.
- Close out of RealPlayer, restart it.
If the issue persists, please follow the instructions from the below link.
Please note: If you have any playlists created, you will have to recreate them.