Sticky/Jumpy Controls

[RockDog]

I'm using AutoCAD 2011 on Windows 7. I usually have two drawings open, one of them is fine in the sense that i don't have any problems with it. The other drawing is another matter......the cross-hairs are very slow to react to the mouse, and so are the commands. When i press a command the little square doesn't move smoothly over the screen but is jumpy, like it's snapping onto a grid....which by the way is turned off. Tried a lot of things, Audit, Purge and nothing. The weird thing is, this drawing is a Save As from the one that has no problems. I'm pretty fast at drawing and this is slowing me down big time.

Any thoughts or suggestions?

[RockDog]

I just Copied everything form the problematic drawing and pasted it into a New drawing thinking it would sort itself out, but NO, the problem still exists

[jaberwok]

Are you saying that SNAP is turned off or GRID is?
GRID doesn't matter, SNAP does matter.

[RockDog]

The snap is turned off. However, the drawing i'm working on has 3 sections......so, what i've done is copied a section into a new drawing and working on it from that and it's fine. I don't think it's a command issue, i think there's something in the actual drawing that's causing this blip. When i copied everything into a new drawing i was getting the sticky command, but as i've just copied a part of the drawing, it seems to be fine. Maybe when i copy the other sections into another new drawing, i'll probably find out which section has the issue.....a process of ilimination me thinks.

[rkmcswain]

Is DUCS enabled? (See http://cadpanacea.com/node/258 )
Is Selection Cycling enabled? This can slow down things in a busy drawing.

[RockDog]

Is DUCS enabled? (See http://cadpanacea.com/node/258 )
Is Selection Cycling enabled? This can slow down things in a busy drawing.

Both are turned off...but as i mentioned earlier, i've copied portions of the drawing i need to work on in a new drawing and it seems to be fine. I really think there's a block in the drawing that's causing these problems.