Thanks for writing. I appreciate your interest in ArtistsNetwork.tv and am sorry to hear that you are having trouble playing videos on your Windows 7 / 8.1 computers. I'd like to assist. Please pm me with the details: will need your browser information to start.
We are not aware of issues with Windows 7 / 8.1, so think it could be a browser issue you are experiencing. Have you tried Firefox as Doug recommends?
Look forward to hearing from you.
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