I've had this issue for a month or so when everything was working (all of my app were installed) for a month+ then I installed a new app and everything went downhill; I can't recall the name of the app.

I've done a Refresh & Reset many times but eventually the screen flashing issue comes back. It doesn't appear related to any particular app because if I install that app first, everything is fine but it may be at fault if I install it after installing some other app. I thought it could be a virus and I've done several scans in which nothing turned up.

If there are any suggestions plz let me know.