Emptye error or warning when closing AutoCAD

[info.48157]

AC2012-error.png
This box shows up twice when I close AutoCAD 2012. I can't find out why or what's causes it.
Is there a log-file or somewhere where to look? Does any-one else has/had the same problem. What's the solution???

[cadtag]

not uncommon, and I don't think anyone has identified a cause. You can look into Windows Event Viewer and see if anything pops out at you....

Solution is hit OK, at least until you can identify the cause.

[jpaulsen]

Are you using Steltman River Tools? We get the same error on our computers that run Civil 3D with River Tools. It appears to be benign.

[Opie]

Do you have a newer version of AutoCAD also installed on the same computer? That was the cause for me. I no longer have this version installed.