I saw a screenshot, don't remember where, of CPUZ running on one of the Costco machines and it showed the FSB @ 133 with a multiplier of 10 (1333Mhz). There was no context, so I don't know if it came that way or whoever posted the shot had used SetFSB to nudge it up. I know the Walmart ones come clocked at 1241Mhz (124Mhz FSB). The thing is, I keep reading about all these people clocking them up to 1.45Ghz, even 1.5Ghz, and mine crashes and burns frequently at pretty much [i]any[/i] overclock. It will run almost stable at 1333Mhz, which [b]should[/b] be the default in the first place, but anything very much over that and it crashes [i]often[/i]. 1375Mhz is possible but I still get random crashes, programs failing to launch, all that stuff. 1400 and I'm lucky to surf the web for 10 minutes and watching Flash videos (the purpose of overclocking in the first place) crashes it pretty much instantly. I even swapped in a much faster stick of 2Gb RAM to make sure that wasn't the issue and there was no change. Maybe I just got a dud. It happens. Anyway: do the Costco ones come clocked at 133Mhz FSB? They're not the on the site at all, so I can't check there. I'm tempted to put CPUZ on a flash drive and go run it on one of the Costco display models. I'm guessing that since the Walmart one comes clocked at 1241Mhz, Acer took advantage of the lower clock to tweak the voltage settings down a bit to save a few minutes of battery life and reduce heat, which is why mine struggles to even run stably at what should be it's default speed. It's kind of a bummer, since clocking it up to 1.45Ghz would bring it more in line which the N270, which isn't exactly a powerhouse CPU itself, and would probably make fullscreen SD Hulu episodes possible at native resolution. As it is, shows are [i]almost[/i] watchable fullscreen, but just sluggish enough to be annoying/noticeable. It's frustrating because this machine is [i]awesome[/i] in so many ways, and if it was only just a tiny bit faster (as fast as my Wind), I'd be satisfied with it. And, yes, I realize the Wind is running at 1024x600, which makes fullscreen video much easier for it, especially in turbo mode (2Ghz), but I even switched the 751 to 1024x768 and fullscreen flash video was still a tad too sluggish. Anyway, enough rambling. Would be interested to hear if the Costco machines are more overclocking-friendly than the Walmart ones, though.