Frustrating cursor change behavior...
I've been getting a strange and very annoying Safari-connected behavior for months now and haven't been able to find the culprit. The behavior is that the "default" mouse cursor state becomes an arrow combined with a gray rectangle:
What's more, the contact/origin point for that cursor isn't the tip of the arrow, but the middle of the graphic, between the back end of the arrow and the rectangle. Lots of fun trying to click things while this is happening. Oh, and it happens in ALL applications that use the default mouse cursor, not just Safari. I know that it's coming *from* Safari because it goes away when I quit that app and comes back when I launch it again. It is not related to Extensions - I can turn them off and restart the app, and again I get this behavior.
For awhile I was attributing this behavior to Google Spreadsheets, since it seemed like I could close them or move them to my secondary monitor and the problem would go away, but this morning I seem to have eliminated that from the list of possible conflicts - even when I close all Spreadsheets, the problem remains.
Has anyone else seen this? I haven't found any descriptions of problems matching this on the web.