I've been using my new AT&T Galaxy S3 for about a month now (replaced my BlackBerry Torch, what a step up!) and this is the first significant system bug I've found.
I too started having this problem just yesterday when I installed Light Flow. I don't think there's anything wrong with the application itself. In fact it's a great app. It's just that that Light Flow needs to add a service to monitor event messages kicked out by the various applications it monitors and obviously this setting needs to be turned on.
I attribute the problem to Ice Cream Sandwich, ICS version 4.0.4 is what I'm running, because the error condition occurs irrespective of the product that installs a service. (Most products don't have to do that and so the bug has been somewhat camouflaged until now.) That said, I don't think however that we should have to wait for Jelly Bean. Who know when / if it will be available for the devices currently running ICS? This bug, as others have already pointed out is very, VERY annoying. I think we need a point release and I'm planning to email the folks at Light Flow next (who may well already know though based on how many times this error is popping up in Google search) so that they can push for that.
There is a little bit of good news here though. When one turns off Light Flow in Accessibility options (or whatever other app a Android customer running ICS has downloaded that has a service installed) the message will promptly go away.
:-\
Status Update:
I contacted the folks at Light Flow as I mentioned above I would do and they were quite prompt in replying. Yes, they know of the problem which they think is a bug in ICS and/or the Samsung implementation. IMO FWIW, the bug's most likely in the O/S itself, as delivered from Google. I say this because the very same bug has been seen on other phones, several Sony phone models upgraded to ICS for example.
Below is some helpful info that Andy at Rage Consulting (the author of Light Flow) provided in his email:
See the top question on this page here: Galaxy S3
Try the following that I've just been posted someone has tried:
For those who wants to try it do the following with your Samsung S3: - Go to Settings -> Accessibility -> Talkback "ON" - Select "Settings" from the bottom of the page - Uncheck all Talkback options - Switch Talkback "Off" again - Go back to Settings -> Application manager -> All - Disable Google TTS (text to speech) - Disable Samsung TTS (text to speech)
/end message and status update/