Recently when I've had my 3 homepages open they suddenly go blank & i lose communication with the particular websites - if i then close all the windows and click IE they reappear no problem - this has been happening only recently & a noteworthy occurrence I've noticed is that Norton has also been sending an alert concerning "high memory usage" for the first time recently but not necessarily before the windows go blank.
I did renew my Norton Internet Security subscription recently but other than that the machine is only used for email, surfing, & using Word & Excel - no games or anything fancy - a bare bones laptop that I've kept pretty clean - and a recent full Norton scan came up clean - also, it's a Lenovo and it passed a full system and stress test using Lenovo's proprietary software that came loaded with the machine.
I'm hoping my description might jog somebody's memory as to what could be causing this ?????