First off, maybe you would like to change your tone. Someone has taken the time to answer your question as best he knows how. He thinks he's answering the question you asked, and all you can give him is attitude. At least, that's how it comes across to me.
Second, 152 mb difference is a big amount. It's not the same amount as the kernel seems to be when you add them up, cos that's either around 141 or 171 if you add the non-paged part. However, if I look at my own memory, it says I have a total of 4094 MB, which is strange, as it should be 4 GB, or 4096MB. Whether that's a bug in windows, or whether it means that the system is actually taking a part of the mem for something else I cannot honestly tell you.
There is, however, another possibility, which you might want to check out if you are a bit paranoid, and that's that your RAM might not be completely ok anymore. You can run some mem stresstests on it overnight to check whether it's the ram or not.
Oh, btw, what's up with starting every word with a capital letter?