zo te zien kun je de oplossing hier vinden:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=7236884&linkID=9240617
hier staat er ook nog iets over
http://forums.autodesk.com/t5/CAD-Managers/This-version-of-Autocad-was-not-installed-properly/td-p/2404178
Google is your friend
Lex
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=7236884&linkID=9240617
hier staat er ook nog iets over
http://forums.autodesk.com/t5/CAD-Managers/This-version-of-Autocad-was-not-installed-properly/td-p/2404178
Google is your friend

Lex
CiteerThese errors indicate corruption of the .NET Framework. This operating
system component is required for several AutoCAD® features, including
the Properties Palette, the Layer Manager, Ribbon, Menu Browser,
Tooltips and other features.
To correct this issue
1. On the Start menu (Windows), click Settings > Control Panel.
2. In Control Panel, double-click Add or Remove Programs (Windows
2000/XP) or Programs and Features (Windows Vista).
3. Uninstall all versions of .NET Framework.
4. Reinstall only the version of .NET Framework required for your
software version. Refer to the list below for AutoCAD requirements. For
vertical products, consult the product installation literature for the
required .NET Framework version.
* AutoCAD 2005/AutoCAD LT 2005 requires .NET Framework 1.1
* AutoCAD 2006/AutoCAD LT 2006 requires .NET Framework 1.1 SP 1
* AutoCAD 2007/AutoCAD LT 2007 requires .NET Framework 2.0
* AutoCAD 2008/AutoCAD LT 2008 requires .NET Framework 2.0
* AutoCAD 2009/AutoCAD LT 2009 requires .NET Framework 3.0