My netbook came with 1 gigabyte of memory.  I ordered a replacement 2GB memory card with the netbook.  It arrived today, and I installed it.  The machine booted right up, which was nice, and I asked Windows to tell me how much memory I now had.  It said: 0.99GB.  Huh?

It took a while, but I finally figured it out.  The Asus BIOS has something called a "Boot Booster".  It makes the machine boot up more quickly…but apparently some things are skipped. Like scanning the memory to see how much you have.  I disabled the Boot Booster, and rebooted: 1.99GB.  I then re-enabled the Boot Booster, and all is good.