Has anyone had any problems with the new plastice racks inside the DAKO autostainer? We cannot seem to get them level, if one slide position is level another is not. This has been the cause (we think) of non-specific staining on corners ofslides that were so tilted that when the DAB was applied it ran off and that corner air-dried.  Anyone other DAKO autostainer users noticing this?  Thanks,  Sandosis