Cheers mate !
That definately helped ,I'm very please with your hand in this.By the way have you come across any other graphical waveform editing tool where I can adjust the amplitude of analog waveforms on a timeline basis ,with functions like copy & paste,adding noise and things like that.If so please let me know even if it's a different program from labview.Cos a client of mine doesn't want to do editing the hard way.He wants to edit the waveform by drawing.I would be very grateful for your advice.
Thanks
Rajan