Mistery solved? BSOD caused by ntoskrnl?

My brand new computer crashed 6 times already. You know, the infamous "blue screen of death" (BSOD) and after some detective work I found the culprit (?): C:\Windows\system32\ntoskrnl.exe, the operating system kernel, OS version 6.1.7600.16539 (win7_gdr.100226-1909). Now, go figure why in the world the OS kernel of a Windows 7 64-bit OS is in the system32 folder (?!) First, I downloaded and installed the Microsoft 64-bit debugging tools (see 3 posts below) but the debugger "was not using the correct symbols", installed, reinstalled, did not work, and I kind of gave up. Then I found a utility called WhoCrashed, which did not work in my Win 7 machine, but it did work fine in my Vista machine (using a copy of the c:\windows\minidump files) and I got my first hint of the ntoskrnl.exe module as the culprit for my 6 episodes of STOP errors: 3 as UNEXPECTED_KERNEL_MODE_TRAP and 3 as APC_INDEX_MISMATCH. This utility also informed me that my system configuration might be incorrect, being possible that another driver is involved but it was not identified at the time of the analysis. For the UNEXPECTED_KERNEL_MODE_TRAP error I found in "Upgrading and Repairing Microsoft Windows 2nd. ed, by Scott Mueller" that the most common cause for this type of STOP error is defective memory (uncheck), L2 processor cache (uncheck) or video card memory (not sure, since I had 'updated' my NVidia driver, or perhaps precisely because of that) and "it could also be caused by an overheating system", which makes sense in my case, since I had to call DELL and get a new AC adapter, given the fact that it was getting extremely hot as an iron (!). Another great utility to read dump files, which I found along the way, is Bluescreenview by nirsoft.net (I don't make a link here because ZoneAlarm Extreme Security advised me that this site carries spyware). However I trusted the site and donwloaded the application, which being easier to use than the two I mentioned above, just confirmed what I already knew. In the meantime I was able to download and install the fabulous VMWare Workstation for virtual machines and ran Windows XP and OpenSuse, concurrently with the host OS Windows 7, without a hiccup.