Hi Linda, Is this a problem that has just started or has the red kit always had this artefact?
- If it just started, perhaps it is a problem with a particular kit lot number (or numbers). If so, get Leica Tech service involved to see if anyone else has reported a problem. - If it has been an ongoing issue for the red kit then perhaps you need to modify the Red Kit protocol by adding additional (and/or longer) wash steps. Here again Tech Service can help you with this. - The only other thing I can think to ask is: Do you have anyone new operating the instrument? Could a new person be putting undiluted Bond Wash in the bulk container? Let us know what you find out. Good luck. Greg -- *Greg Dobbin* 1205 Pleasant Grove Rd RR#2 York, PE C0A 1P0 *Everything in moderation...even moderation itself**!* _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet