Screen flashing on and off by itself?

[campo]

Hey guys,

I have been using a custom rom for about 2 months now and it has worked great. All of the sudden however my back light keeps turning on and off by itself every couple seconds. I reloaded a different rom, and it was working for a little bit... but now its doing the same thing again. Has anyone heard of this before? Any ideas. Thanks for all the help

[weedahoe]

Many of us have this and it has something to do with the device communicating with the tower for whatever reason. Mine will come on and then go off after it times out and then a few seconds later come back on and deliver a txt msg or something else. So its KINDA normal.