Has anyone else noticed that BOMS keep rolling up when editing them. I'm using 2008 SP4.0. The only work around for this is to set the "part configuration grouping" too "display configurations of the same part as separate items" then start editing the BOM and after I'm done delete the BOM and re-insert with the setting as "display configurations with the same name as one item". This is a huge aggravation! I don't recall having problems like this before, why now? This reminds of IV BOM behaviors.