Welcome to the board.

Jim, your problem wren't the brackets but your AND keyword.
You need to use the OR key.
Result can be:

code:

---

  IF (Ingroup("GroupA") <> 0) OR (Ingroup("GroupB") <> 0)
      use o: "\\server\share1"
      use p: "\\server\share2"
  ENDIF

---