In case you didn’t know, there is a refresh button built into the display of each and every View within CRM.
If you look in the upper-right corner of the View, you’ll see two circular-green arrows:
Clicking this button will refresh the contents of the grid.
There is one caveat, however: If you have altered the layout of the grid using the Grid Designer, the changes will not be reflected in the active View layout.
For that to take effect, you must refresh your page using F5.