Yes. Sometimes it does. When cleaning cookies, browsing history and running virus scans I see that there is an actual cookie that is called flashing pointer. But my security system actually XXXX over the exact site responsible. I have always assumed it to be add related. In all fairness it only occurs randomly. Like earlier this evening and not now.
It starts flashing on and off the screen. I thought it was my anti-virus on my home laptop(Avast) so I brought my work laptop which is running AVG Pro.
I did notice that when it did it last time, there was a banner ad that was at the top that was empty and said it was blocked.
I was just wondering if was just isolated to my computers or anyone else was having a similar issue.
If it was mine, I was gonna try and trace down the culprit and destroy it.