BOM keeps rolling up?

Has anyone else noticed that BOMS keep rolling up whenediting them. I'm using 2008 SP4.0. The only work around for thisis to set the "part configuration grouping" too "displayconfigurations of the same part as separate items" then startediting the BOM and after I'm done delete the BOM and re-insertwith the setting as "display configurations with the same name asone item". This is a huge aggravation! I don't recall havingproblems like this before, why now? This reminds of IV BOMbehaviors.SolidworksBill Of Materials