I have been having the same problem over and over lately. I am trying to draw a polyline and when the cursor gets close to a grading feature line, AutoCAD freezes. It has happened in 2012 and 2014. Does anyone else have this same problem, and any suggestions?
Same problem here. Found that the application would FREEZE every time the cursor passed over a certain entity. It turned out to be a 500+ segment [AECC_PARCEL_SEGMENT] - as soon as I removed this from the drawing - everything went back to normal.
Are running object snaps on? I've seen times when using running object snaps that a drawing will come to a crawl.
Sounds to me like the auto highlight selection tool, or possibly the rollover tool tips (there are two different types, one found in AutoCAD options, and one found in the drawing ambient settings)