Multileader movement

Hi all,

I'm relatively new to Auto Cad.  I'm running AutoCad 2011.

I've been annotating my drawings using multileaders quite happily for a while now.  Recently I'm noticing that when I come back to a drawing I've finished with, the multileader arrows have mysteriously moved of their own accord.

The text part of the multileader is remaining in the same place, it's just the arrow that moves position.

I've checked that there is no interference by a third party and that no objects have been moved in the drawing.

Any ideas or suggestions would be greatly appreciated.

Happy Wednesday, kind regards,

James

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