From the screenshots, it sounds like MacOS X.
I am now using Mandriva 2006 for a few days, and still the driver supports are not that good which is unfortunate, I thought that now it should have the supports for the needs.
I was able to install the ATI driver for my All in wonders 9600 xt and from it to be able to run that screen at the refreshrate I wanted. It loaded the driver correctly, but ATI proprity driver does not support the all in wonders options and I had to install a GNU for this, and another GNU to be able to use the remote. As long as it is free it is nice, I really love the way with Mandriva I can configure every bit of appearance of my system, I gave a MacOS X look.
What really pissed me off, is the printer, first I wasn't able to find a driver for it, I have found a driver for another printer which worked, but it would print only in draft and I don't have all the options and configurations I had on Windows XP, and then finally after searching over the web, I have found a nice software, TurboPrint, which support my printer and many others, it provides the options and configurations like I had on WindowsXP, but the damn thing is 30 $.
I moved on Linux because of all the GNU stuff I found that are just found with Linux, but it really pisses me off to pay 30 $ for something that a simple driver SHOULD DO.
Most of the problem is with the compagnies that still refuse to support Linux, it is really hard to replace Windows there, I was ready to pay for example a Linux version of Antidote, they do not produce a Linux version, Correcteur 101 since 2003 doesn't exist on Linux, there are no French advanced grammer correcters and hardware compagnies won't provide the drivers necessary and I have to search to get them.
That's really not nice since I really wanted to leave Windows as it is with Macromedia Flash the only products I still use without paying, since there are no free alternatives for both. My second migration which was with Mandrake 10 failed for the hardware support and the way I could not get run my hardwares the way they should have, started with my monitor with the wrong refreshing rates. While it improved it is still left behind.
I am just wondering, when I was using a Mac, I was finding that many things which existed in the Windows world were missing, now I feel worst than that. Also, I still can't understand why I can't even have the support the Mac world has, I know that very few peoples use Linux, but from the statistics I have read, there is now more Linux users than Mac users, so this lack of support is not justitified.
Also, now that I am with Linux, I am more than ever ready to pay for the softwares than when I was on PC and that all the Windows versions were available illegally over the net, so I really believe that more person per OS user will pay for the softwares than in the Windows side. It's really not nice.