Inserting new components then acting strangly

Lately when I insert new components into an existing assemblythey act "fixed" even tho there are no mates at all assigned tothem at all. The minus (-) sign appears next to each component butstill they act fixed. I can mate like normal, just can't move withthe actual "move" command or even left click/drag like I havealways been able to do. Suggestions? Thank you very kindly.SolidworksAssemblies