Exit hang up with SPLAT

Sometimes during the last few updates I have noticed an old problem come back.  That is, when exiting SPLAT, the system seems to hang up (new symptom is that I get a RESET window after the main GUI exits.  The only way to get control back of SPLAT is to go to task manager and find SONAR.EXE and do an END TASK... 
 
I can then restart SONAR without issues.  Is there a fix to this issue, be it in my config or other settings?
 
Thanks,
Jim
 
PS - a similar issue used to happen back in X versions of Sonar but seemed to get cleared up with SPLAT was released, but it is back again.