And here is another issue that has just started to occur on a rather annoying, regular basis. Right click on the task bar, hoping to bring up a menu so you can

And here is another issue that has just started to occur on a rather annoying, regular basis. Right click on the task bar, hoping to bring up a menu so you can select the task manager to kill an errant application. Instead you get a pop up menu that display, each menu item but without any text. So you get a popup menu a few millimetres in width. Needless to say it is a useless, unusable popup menu, but luckily a reboot does fix the issue.