Noob Questions

Hi There and thanks for the great site. I bought a PS3 largely because I hate windows and I wanted to have a cool 'Media PC' hooked up to my HDTV. I think that the potential for the PS3 as a linux box is unbelievable, I hope you guys feel the same.

I installed YDL onto my system a couple nights ago and I have a few questions. I am a true noob, so please bear with me. I tried to find ways to do these things through the forums here and elsewhere but they are still a bit too technical for me.

First off, the default resolution for the window manager (E17) on YDL is way too high, I can barely see the icons. Once I open Firefox the text size etc.. is a bit better but I would like to know if there is an easy text command to decrease the resolution and/or increase the size of all the icons. I have tried using a 'ps3videomode' command but it just screwed everything up, but I just kind of guessed at it. So does anybody know off-hand a few easy commands to decrease the resolution slightly from default E17?

My second question is related to the first, I would like to try out KDE as an alternative to E17 just to see if the default resolution will look a bit better on my HDTV. I have looked around and all I could find as a solution is to write 'yum kdebase' in the command line, or something to that effect. Will writing 'yum kdebase' install a new window manager on my system? Also, is KDE as stable as YDL?

Thanks much for reading my post, and for any help you might give.

Here is my solution to my own problem. So I have a 26 inch CRT HDTV, pretty unusual, and it upconverts 720p to 1080i like most CRTs, I don't know if that matters but FYI.
My problem was that the default install of YDL gave me super tiny text and super tiny icons. I thought I could change the default resolution to fix that, and tried a few things like 480p fullscreen which actually looked good but the edges didn't fit which was super annoying - anyway what I ended up doing is changing some options. First go into configuration options, which is somewhere near the bottom of the list that comes up when you click on the screen, and select font options, and then you have to manually change the font size from 10.0 to 20.0 or whatever size you prefer. I can't remember what categories I figured were important but they are like menu title, menu list, crap like that. Anyway, if you click apply and then open the menu then you will know it is all good.
To change the size of the icons on the screen go into shelves, then right click or something to get into shelf options, and there are all sorts of options. I thought the default shelf was horrible, but there are actually some cool things you can put on there, but you have to enable some of them first through 'modules.'
When you open Firefox the type will still be tiny but you can increase it by pressing ctrl+ a couple times.