I am using the newest version 0.9.115d, portable.  When opening a new database (either the Welcome database or one of my own), I get an endless loop of Windows error beep sounds. The only way I have found to stop it is to click on the Live-search grid.  Then I can go back to another grid and work without the beeping.  This is happening with both full IQ and IQ outliner, on two different computers, Windows 7 and Windows 10.