[quote=c921]I just got my Acer AO751H-1893 the one with the 6-cell battery yesterday and guess what? It froze like 7 times in a 3 hour operation. Today, I gave it another try, 5 more times, it froze, so I had to take out the battery 11 times just to reboot it. I noticed when I use skype with video and I also open another browser that's where the freezing occurs. But the day before, when I was just browsing normally, it will just freeze by itself. Good thing I purchased this netbook from a store which offers a 20 day warranty - anything goes wrong within 20 days, they will replace it with a new one but cannot give refunds. One more problem is when it started to freeze, I could hear the fan making a noise... which I don't know why. Even the the video of my webcam froze. I am so disappointed. I thought with a bigger memory and hard drive, it will step up but this netbook is just too slow for me. So, I am returning this first time purchase of an Acer netbook tomorrow. Hope I don't get another lemon. I thought this is not common and its good to have come across this forum. Uninstalling the preloaded softwares helped somewhat and made it more fast than earlier. Will update as soon as I get the new one.[/quote] It helps a lot to uninstall the anti-virus preinstalled by acer, simply because it sucks. Replace it with Avira Antivir, or Avast!. It's still a netbook, so don't expect too much speed from it.