@mirage_59: Canonical does try to establish partnership to distribute Ubuntu preinstalled; at a time, HP actually sold PCs with Ubuntu as the OS. However, Microsoft kicked back and made it so that not only was the hardware forced to be different than the Windows-equipped hardware, it was also uninteresting financially (when, through options, you made a Ubuntu-based PC identical to a Windows PC, the former was more expensive). On top of that, the "open source" HP PCs were always hidden away in a corner of their website, right under a huge banner with HP RECOMMENDS WINDOWS VISTA. And now, they're completely gone.
Currently, asking any hardware maker to sell you a PC with no OS will get you at best the following answer: "you don't want Windows? Well, I can offer you a rebate equal to a Windows license, and you'll get Windows free". Who, apart from real enthusiasts, will delete a free OS? Case in point: in France, where selling a PC with the OS as a separate product is law, several hardware makers will reimburse you for the price of the Windows license, if:
- you refused the Windows license and can prove it (good luck to you if the PC was preactivated: get a camera running, unpack the PC inside the store in front of the seller - if he accepts!!)
- you return the PC IN WHOLE to the manufacturer (the bill's on you) and wait for up to six weeks for the cleared up machine to be returned to you
- and then wait an extra year for the refund to get to you.
That's the worst-case scenario: some hardware makers reimburse the shipping costs and only need a couple weeks to return the PC and the refund.
@gaia: WoW's stability depends mostly on the graphics driver's stability; I personally had trouble with a RadeonHD 4850 that would hang the PC, until I changed the motherboard (I was using an Athlon64 X2 3800+ on an Nvidia chipset; going to an AMD chipset solved ALL stability problems). After that, merely forcing WoW to OpenGL improved performance enough that I could play my paladin healer in Raid 10 easily - 25 was a bit choppy (but that was before Cataclysm; I stopped playing then, not because of performance problems, but I didn't enjoy WoW anymore).
@fb39ca4: Wine makes use of OpenGL to emulate DirectX; many DirectX features are supported in OpenGL, but Wine depends on the OpenGL driver to report what features it does support. If one feature is missing, Wine will either stub it (leading to missing effects or textures) or implement it in software (slow performance). Case in point, a HUGE performance improvement for Ati/AMD users was when, having gotten a report that their driver didn't properly advertise its supported features, AMD fixed it in the Catalyst 9.10 release (I think that was the one), and suddenly all rendering bugs in WoW were gone, as well as the frame rate going up 40% - actually, all that was missing from WoW on Wine when I stopped was the hardware accelerated mouse cursor (disabled by Blizzard in the Windows build of WoW) - but even then you could patch Wine to get it anyway. I do know that when Blizzard enabled it in Cataclysm, there was much rejoicing.
In short, if you're having a graphical problem with an app under Linux, be it running natively or through Wine, report it to the driver's maker: Nvidia don't really care, AMD may actually fix it, and Intel can accept patches as their Linux drivers are (at least, for most) open source;