Why Does the PivotTable Field List Keep Disappearing?

[SteelDog]

When working with my Pivot tables in Excel 07, I use the Pivot Table Icon on my ribbon but it does nothing. The Field list keeps disappearing. Any thoughts?

 

[SteelDog]

Figured it out. It must be an Excel 07 glitch. The Fields list disappears and the Field List button on the ribbon does nothing. I even tried closing and reopening workbook and another where I have Pivot tables.

I resolved it simply by closing down excel the reopening it. That did the trick.