Hi CIS 10.0.1.6258 is causing this problem no aero effect and the pop up image attached. i no it’s cis because when I uninstall it everything works as it should. The problem occured after the av was updated and now only uninstalling resolves the problem. I’ve tried disabling components to no avail. Ps whatever config is used the same problem occurs. Win 7 64 bit home edition.