BETA4 Vi backspace behavior

[Mike B]

Sorry if this is already addressed or is a non-issue. If I enter text 
into vi (or vim for that matter) and hit the backspace key the cursor 
runs over the text but does not remove it from the screen. If I then hit 
escape after backing over all of this text it is then, and only then, 
removed from the buffer. On my 4.x  systems vi and vim work as I expect 
with no intervention on my part. My term is set to cons25 btw. Thanks

Mike