If you cannot see the property sheet with only ONE form in design view, it may be off to one side or barely visible at the top or bottom of the Access window. Look for a slim part of the ps window border that you can grab and drag back. If not,
- press Alt+G+HP or select the property sheet icon in the ribbon so that it's highlighted
- make sure your form window is the active window by clicking somewhere on the form
- look at the text in the status bar (lower left). Probably says "Design View"
- Press F6 and read the text again. If it changes to reflect some aspect of the property sheet, such as "Displayed Caption of Object", then the ps is open - you just can't see it. That text would be the first property on the ps Format tab.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.