' Gambas class file Public Sub Form_Open() FOtherTimer.Show End Public Sub Button1_Click() Timer1.Delay = CInt(TextBox1.Text) Timer1.Enabled = True End Public Sub Timer1_Timer() Label1.Background = &HFF0000& End Public Sub Button2_Click() Timer1.Enabled = False 'try without this line Label1.Background = &HDCDCDC& End Public Sub ToggleButton1_Click() If ToggleButton1.Value = True Then Timer2.Delay = CInt(TextBox2.Text) 'low Timer3.Delay = CInt(TextBox3.Text) 'high Timer2.Enabled = True Else Timer2.Enabled = False Timer3.Enabled = False Endif End Public Sub Timer2_Timer() Label5.Background = &HFF0000& Timer3.Enabled = True Timer2.Enabled = False End Public Sub Timer3_Timer() Label5.Background = &H00FF00& Timer2.Enabled = True Timer3.Enabled = False End