Update Xref notifications - Dual monitors

I got a second monitor at work, and I have the primary on the right, and the secondary on the left. This way I can have AutoCAD fullscreen all the time directly in front of me, and all my email, desktop, etc... just off the right.

Oddly, when it's in this configuration, the Xref notification bubble doesn't come up. The tiny icon in the bottom right of the screen shows that the xrefs need updating, but I don't get the bubble anymore. If I switch them around so that the primary is on the left, and the secondary is on the right, it works perfectly.

Has anyone had this happen? It's not terribly important, but would be nice if there was a fix.

is the bubble popping up in the second screen when you have autocad in the primary one?

When autocad is in the primary screen, it works normal, and the bubble appears in the primary screen. When it is in the secondary screen, I get no bubble at all.