Need an app that flashes laptop screen
 

The inverter board (or the backlight) is fucking up and so randomly the screen goes black.. You can still barely see the picture if you shine a light on it(it just looks like the brightness is turned down to 5 when it does it). The screen comes right back up if you tap the screen close sensor button thing..

I have it sitting across the room and still need to be able to see what it's doing...

I was hoping that there was an app that would turn the monitor off and back on (as quickly as possible- hopefully just end up creating a not very noticable flash) every, say, ten seconds?