...of whatever you want to talk about.
Monitors
One of the big problems with them is that most if not all modern ones are widescreen, with a higher ratio of width-to-height than the old ones. As the standard measure of screen "size" happens to be between diagonally opposite corners, and the higher the ratio, the smaller the surface area is for a given diagonal...manufacturers love them...at the user's expense, of course, and not just because of the reduction in area.
I don't think widescreens on PC are good for much other than viewing two documents side-by-side. Otherwise they're not pleasant to use.
I also hate the way the colours are generally over-saturated by default, and what's with all that brightness??? And, of course, there's gloss, but at least with PC screens there's a choice.
Portable game systems, not so much...
And one other thing. I mentioned it in another thread (but got no response that I can recall), but I thought I should repeat that the monitor I'm using now (aside from being 16:9 ratio (specifically 1920x1080)) turns out to be weak to some very small creature (a mite?). It's stuck inside the panel and I can't get it out without, at least, disassembling the thing. And I'm not going to do that now because I'd rather not wreck it completely...
Lighting
I can't say I get the popular "preference" for the "warm" incandescent-style light. It just looks hideously orange-y to me...
I have read enough reports of catastrophic failures of CFLs to consider them unsafe in general.
Scare campaigns
When are they going to realise that people are just going to close their eyes/change the channel/whatever when they put those things on??? Seriously, I do not need to be reminded again and again about the dangers of (insert activity here). And I definitely don't need to be presented with footage that looks like something straight out of a horror movie.
By the way, is there any way to get the smilies out of the way while writing a post???