The internal Flip timer is *always* set to the value of Hz, with a Null (or negative) value defaulting to 60Hz.
Under DX, the refresh rate will be set to the value of Hz if available at that particular resolution otherwise dropping to the default refresh rate (as set by the drivers) and it'll fall back to 60Hz* if that fails. AFAIR, GL will just drop straight to 60Hz* if the refresh rate at a particular resolution is unavailable.
*When I say 60Hz, I assume that BMax (or rather the API) uses the lowest available refresh rate.
More here...
http://blitzbasic.com/Community/posts.php?topic=57862
Under DX, the refresh rate will be set to the value of Hz if available at that particular resolution otherwise dropping to the default refresh rate (as set by the drivers) and it'll fall back to 60Hz* if that fails. AFAIR, GL will just drop straight to 60Hz* if the refresh rate at a particular resolution is unavailable.
*When I say 60Hz, I assume that BMax (or rather the API) uses the lowest available refresh rate.
More here...
http://blitzbasic.com/Community/posts.php?topic=57862