Mathew, Heres another long shot! Check the height of your resistors and compare them the the height in the part data that applies to them. If the Height information is too low then the resistor is pressed further down onto the PCB than required. If you are using under board support directly blow the resistor this may cause enough pressure to crack the resistor. This is gust a guess, but who knows. Mike Fitzgerald Production Engineering Mobile Radio Division Tait Electronics Ltd. ------------------------------------------------------ 558 Wairakei Road, PO Box 1645 Christchurch, New Zealand. Direct Phone: (64)(3) 358 6663 Fax: (64)(3) 358 3603 Mobile: (025) 228 7068 Email: [log in to unmask] Internet: http://www.tait.co.nz ------------------------------------------------------ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################