ArcToolbox and TOC icons corrupted / displayed improperly

Discussion created by isburns on Jun 18, 2012
Latest reply on Jun 19, 2012 by Colchicine
Occasionally after using a tool in ArcToolbox, all of the icons for the different tools, toolsets, and toolboxes will become corrupted.  This also occasionally happens to the items in the table of contents.  I've attached a screenshot of what it looks like when the ArcToolbox icons get corrupted.

I'm not sure what's causing the issue because it is intermittent.  It's not a big issue because it doesn't affect the functionality, but it's a little bit annoying.  Shutting down ArcMap and reopening returns the icons to normal.  Does anyone know what causes this or how it can be avoided?