coastie65: Oh. Yeah, I guess that could be a problem...
I filter my air as good as possible and clean inside regularly, because I know how dust can destroy parts. And of course, smell.
One time, the pc of a friend's son would not run anymore, I told her to bring it to me so I can have a look at it - I took one look at the PSU and told her he had to throw that one out and get a new one and keep it more clean, if he didn't want to burn down the house, lol.
And yes, I do have experience with that new electronics smell, too. The PSU was quite bad and the ASUS motherboard made me nauseous for three weeks. Another reason why I want to avoid new parts, if I can.
The melting smell was similar to the one I accidentally produced a few weeks back, when the cable of my headset fell into my tealight - just for reference. Problem is, my smelling threshold is way low and I smell literally one single molecule - mix two or three smells, which you have basically all the time, and it's like chinese water torture for me (too hard to convey to anyone).
I don't doubt that your intent is good and apprechiate your trying to help. :)
It's just that I'm not easy to be helped, sometimes. ;) Got to figure stuff out by myself most of the time, because only I know what I need removed.