That message is pretty vague, but I think it is a streamlined version of the old unresponsive script warning, unfortunately with fewer details. We have a general support article addressing potential solutions to this issue: [[Warning Unresponsive script - What it means and how to fix it]]. Another common cause of unresponsive script errors on Windows 7 is the protected mode feature of the Flash player plugin. That feature has security benefits, but seems to have serious compatibility issues on some systems. You can disable it using the Add-ons page. Either: * Ctrl+Shift+a * "3-bar" menu button (or Tools menu) > Add-ons In the left column, click Plugins. On the right side, find "Shockwave Flash" and click the More link. Then ''uncheck'' the box for "Enable Adobe Flash protected mode" and try that for a day to see whether it helps.