AutoCAD 2010 :: Slow Jerky Mouse Movement After Accessing Block Editor Or Xref-editing

This was originally posted under 2009 - but I have this issue in 2010!

The old post was: Block Editor Posted: Aug 1, 2008 7:01 PM

When I go into block editor, edit the block then close it out. My cursor is really jerky in model space. Especially bad when I go into a command and try to select something. The only way to get rid of the jerkiness is to close auto cad and restart it. Is there anyway to cure this?

I have 2010 and am experiencing this exact same problem. It is intermittent and will sometimes 'go away' after a few minutes. Block editing is definitely related as a cause. I use SDI = 1 predominantly and it seems to be session independent. In other words one drawing session is experiencing the problem but jumping to another concurrent session exhibits no issues.

Task manager shows off the chart 99% plus on process ACAD when it is occurring.

Palette transparency is off globally. I have installed the latest NVidia driver for my Quadro NVS 285 video card. I am running a 3GHz P4 with 4 Gigabytes of ram - Dell Precision 380 workstation. Block Editor background color is default.

Restarting AutoCAD does make it go away - for the moment - but it is soon back. Even closing all tool palettes has no effect.

This does seem to be drawing specific - 2010 seems to be sensitive to something in older drawing blocks - prototype drawings from hotel vendors for instance - most likely inherited from a third party DXF process exhibit the issue heavily - and blocks from these drawings to a lesser degree. I have to constantly purge, audit, and wblock/replace my drawings to keep them clean. My default file type is 2010 which 'seems' to work, but it still happens. Audits show constant drawing errors cropping up, and repeating an audit, shows the same errors until a wblock replace is performed.