Hi Eric,
I see your point and I will follow your directions. It never happened with me again (if it will I’ll pay attention to what you said). However, it was the first time from my previous experience of using this (and other) forums. I was logged on in my Optiwave account and keep the page open for a long period of time (especially when I was using my smartphone). Just wanted to let you know about that.
Thank you for your advice and explanation!