[Dx4win] QSO won't log problem

[Bill WB2AIV]

A friend called me for help with dx4win but I'm baffled.  He's a long 
time user of DX4Win but hasn't been on the reflector before (he's 
signing up right now - W2KKZ Bob) but is hung up trying to log the contact.

He has his log open and is trying to add a new QSO.  He hits F9 and the 
log box clears.  He can enter all the QSO info and when he his "Enter"  
the log box clears - but the qso doesn't show in the log.

When I repeat his steps on my computer everything works OK.  I ASSUME 
(?) something must be set wrong on his computer.  Anyone have any 
suggestions as to what to look for?

Bill WB2AIV