Noob withy probably a silly question

Hi all, I'm very new to this kind of thing and am trying to build a panel for a flight sim.
Running Windolws 7 64bit
I've downloaded the drivers and I've downloaded the Arduino software and have the sketch I'm going to use for the Arduino.
My problem is when I connect my 16x2 lcd to the Arduino along with the power cables, I get a momentary green light on both the transmit and receive then it goes to red with an L beside it.
The top line of the lcd comes on but I get no characters displaying. I also tried the example Hello World without luck - the programs verify and upload but I get nothing. I fitted an ethernet shield as was asked to on the DCS Forum. When I fit the shield I get a flashing green Rx light, 3 solid green lights and the red power light. Any ideas where I'm going wrong?
Thanks
Les

Ok fixed all of the above. Now though how do I change the IP address in Arduino?
Cheers

mr_mojo97:
Ok fixed all of the above. Now though how do I change the IP address in Arduino?
Cheers

There is a line in the code that sets it. So you just change that line.

mr_mojo,

Good you fond the problem yourself.

I am kind of into FS, but I am XP and 2004.

I have some FS panels, but would be interested in what you have made for FS.