Since you are going to do a new release soon, I ask you if you had a
chance to have a look and fix 2 bugs I posted time ago:
"IB_Grid OnCellClick not fired if Ctrl or Shift key is pressed: 4.5B
bug?" - Jan 5, 2006
http://groups.yahoo.com/group/IBObjects/message/37816

and also:

"Re: Incompatible behaviour or bug between 4.3.Aa and 4.5B with
Masterlink / KeyL" - Jan 13, 2006
http://groups.yahoo.com/group/IBObjects/message/37900

thanks a lot
Marco Menardi