I made some progress on my walkthrough for Nancy Drew: The Deadly Device. I made it all the way through the first third of game or so. It was sort of tricky to figure out what happens in this portion of the game, because it has a lot of one-time things that introduce you to characters and such. Things like...
1. The first time Nancy enters the lounge, the power goes out.
2. The first time Nancy talks to Ellie, she gets a tour of the lab.
3. The first time Nancy uses her alarm clock, there is a power emergency.
4. The second time Nancy uses her alarm clock, Deirdre calls.
5. The third time Nancy uses her alarm clock, Deirdre calls and agrees to help with the case.
Unfortunately for my walkthrough, I got stuck at the lab, and I'm not sure how to progress. I need to do something to trigger the loud humming noise (which lets me get rid of Ellie, so I can snoop in her area and take some items needed for puzzles). However, I have no idea what to do. I tried checking the support forums, but no luck.
I guess tomorrow, I'll spend another hour trying to figure out what it is I have to do next.