key bindings not responding

I recently upgraded my laptop to Asus M16 2023 with Windows 11 Pro x64. Had BF2042 on my previous laptop with no issues. Came to play for 1st time on new laptop and I can't change key bindings! 99% of the time it just doesn't respond when I click on a key to change. Very occasionally it will respond and allow me to change. Tried validating the files, tried deleting cache, tried removing entire documents/BF2042 folder - no difference. I'd say this software is "not fit for purpose" which means I should be able to claim a refund. Can this be fixed or do I get a refund?