ArcToolBox Crashing ArcMap 10

Discussion created by zle83 on Mar 31, 2011
Latest reply on Apr 1, 2011 by zle83
Hello, when I have a map document open and go to open ArcToolBox, I get an error and ArcMap crashes. If I open ArcToolBox on a new instance of ArcMap, it opens fine but then try to load an existing map document and it crashes. Attached here is a screenshot of the problem signature but it may not be that useful. Any help would be greatly appreciated!