My brother came up to visit this week and brought home a new Sony Vaio notebook he had just bought for his job. Being curious, I wanted to know what features he got for the money he paid. Went into Control Panel -> System and looked at the GENERAL tab which gives a quick look at the specs. The memory was listed as 486 (or something close to that number). "That's odd," I thought. "Either this computer is going to have 256 or 512 memory installed." Looked up the Sony Model # and the specs say that the computer should have 512 memory. Why is it listing only 486? If memory serves me correct doesn't the GENERAL tab tell you the amount installed? Thanks for the help.