Hi adrian.collins,
I suggest using Chrome if you can and not IE. Once you're on Chrome, I suggest also turning the quality of each video lower, so the PC doesn't have to struggle trying to play a higher quality video.
You can change the quality of Guitartricks videos by clicking the gear icon. More instructions on how to use the video player is located here: https://www.guitartricks.com/blog/How-the-Video-Player-Works
Hope that helps!
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