autodesk autocad 2011 service pack

Drawing files created with non-Autodesk products can now be successfully opened using the COM AcadDocuments:Open API.
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Input value may not be displayed in the recent input right click menu.When rendering a drawing, you may receive an error message about missing assets.Using an API to render AcDbSubDmesh may lose its orientation, scale and original texture mapping.Extrusions from mesh face path may not be able to follow multiple segment paths correctly.AutoCAD may become unstable after editing Mtext and then changing viewports.3Dconnexion device may not work properly on a 64 bit Operating System in 2D mode in paper space.Autodesk AutoCAD 2011 (RU) Update.1.AutoCAD may become unstable when publishing large drawings to PDF.Command line history may display items that were not entered through the command line.AutoCAD may become unstable after using Control Copy and Control Paste, then saveas to R12DXF.

AutoCAD may become unstable when editing a drawing with all 3dosnaps enabled.
This update includes Service Pack 1 and you do not need to install it prior to installing Service Pack.
Primary Issues Resolved by This Update.
AutoCAD may become unstable while editing mtext.
3Dconnexion device performance may be slow when zooming and or working in a 2D visual style.Click one of the following links.Unable to export multi-line attribute values with ObjectDBX.Wblock may be unable to save the drawing to the AutoCAD 2000 file format for DWG calendar april 2015 holidays and DXF.Perpendicular Osnap behavior is different when grip editing Lines and grip editing Polylines.Readme (select language version).wblock may be unable to save the drawing to the AutoCAD 2000 file format for DWG and DXF.Problems Reported with the Customer Error Reporting Utility.When Workspaces are set to automatically save changes, restarting AutoCAD may result in both the Ribbon and the Command line being turned off.