Using draw, objects sometimes move randomly and erratically

[pastim]

I have a wiring diagram with a load of lines and small objects on it. Quite often, when I try to move one end of a line, or an object, dragging it with the mouse, the object or line end moves in what seems to be a completely random direction. This doesn’t always happen, and seems to happen in phases. It can be stable for a while, doing exactly what I direct with the mouse, and then all of a sudden nothing seems to do what I ask.

This happens on WIndows and Ubuntu versions. I’m currently on version 6.4.2.2, but this has been happening for a while.

In the draw tools, options, settings, all grid options are off.

Help!

[Hrbrgr]

Try the safe mode.

If the error remains not constant, reset your user profile.

[pastim]

I’m not sure what you mean by ‘remains not constant’. Do you mean that the error does not happen?

Anyway, as you suggested I tried safe mode, and it made no difference, so I assume resetting my profile won’t help.