Hi SteveSpector,
We apologize for the inconvenience this has caused you.
I'd like you to check and perform the applicable troubleshooting steps available in this link>>https://support.microsoft.com/en-us/help/4034571/accessories-troubleshoot-problems-microsoft-mouse-or-keyboard and please let us know if this helps. If you have performed all the steps already and it didn't make any difference, you may need to use another mouse so we can determine whether or not the issue lies within the mouse itself or it's within the Surface device.
Kind Regards,
Crest