When moving items around on a PCB (particularly if your board is complex), it can happen that you manage to move a name away from its component so that it is hard to see which component it belongs to.
You can easily find out where the component is by right-clicking on the name and selecting [Show Owner] from the popup menu, or by starting to move the name. In either case, the component to which the name belongs will be highlighted.
You can also use the Goto Component option on the View menu, which will highlight both component and name. Or, click on the name with the keyboard Shift key pressed, which will select the whole component including its name.