DislikedHi Hawaiifive9,
IMHO just follow these steps - one by one:
1) Download the indicator Lawgirl's Trend Display v1.02.mq4 to your computer.
2) Find the location of Meta Trader 4 on your computer. For example: c:/program files/Meta Trader 4
3) In that location there should be a folder called "experts". Open it.
4) In that folder there should be another folder called "indicators". Open it.
5) Copy the indicator into the "indicators" folder.
6) Open the Meta Trader 4 program. If it is already open, close it first and then reopen.
7) Open...Ignored
On the above instructions, you make no mention of need to compile?