you can only allocate more memory to poser if you are on a mac... otherwise.... on a pc.... poser is using all of your available ram.... however the likely culprit here is corrupt rsr's.... which poser will create....the rsr's in the geometries folder... it may even be poser's main rsr....they usually need to be deleted when corrupt.. the main one replaced...and poser recreates the rest of the geometry ones on the first time it is opened again... that is sometimes the problem here