Hey. First time using this, so no clue if I'm doing it right. I wanted to check my alienware Area51 to see whether or not the motherboard would be SLI compatible and for some cleaning, since it was getting a bit dusty on the interior.. Getting the side panel off was fine.. But I can't get it back on, despite my best effort. I have no idea what I'm doing wrong. Any tips or ideas on how to get it back on? It's the casing with the grill.