Hi VFPT,

i have found a possible explanation.

*****************           *************
***  process  ***           *** timer ***
*****************           *************
timer.Enabled=.F.             Start Count
Start Atomic process
------------                  Count=Count+1 -> 1  Timer not fire
------------
------------                  Count=Count+1 -> 2  Timer not fire
------------
timer.Enabled=.F.             Stop Count
------------
Stop Atomic process
                              Fire Timer   Count=1
                              Fire Timer   Count=0 -> stop events

This have a logical bahaviour.
The Bug is on Reset.

*****************           *************
***  process  ***           *** timer ***
*****************           *************
timer.Enabled=.F.             Start Count
Start Atomic process
------------                  Count=Count+1 -> 1  Timer not fire
------------
------------                  Count=Count+1 -> 2  Timer not fire
------------
timer.Enabled=.F.             Stop Count
timer.Reset                   Count=0
------------
Stop Atomic process
                              never Timer event fired

Fabio