No matter what, PS CS4 crashes on startup, please help?

Question

So, to start off with, I just built a system, here's the specs:
Intel Core i7 920
6GB OCZ Ram
MSI X58 Pro Motherboard
Asus EAH 4870 Top Graphics
Vista Ultimate 64
I initially built this system about a week and a half ago, and put a beta copy of Windows 7 on it while waiting for my copy of Vista to arrive. PS installed fine, was blazing fast, and all was good.
I then got Vista, formatted the system, etc. Tried to install PS, and it would crash on startup. I figured it was driver issues, so I decided to deal with it later. I updated all the drivers, etc, and it still wouldn't work. I uninstalled it, but got an error on uninstall. Eventually I found the PS Clean uninstall script, and that has been helping. Now when I try to reinstall, it reinstalls fine, but again, immediate crash. I figured, long shot, but maybe somehow my PS disc was corrupt, so I spent last night DLing a trial from here. Again, immediate crash.
Running 64bit Vista, I have the option to open wither Adobe Photoshop CS4, or Adobe Photoshop CS4 (32 bit.) They both have the exact same error.
This is getting pretty annoying, and I honestly have already spent too long looking through KB articles, and I'm hoping you guys might have a solution for me. I have attached a screenshot of the error I have been getting. If it matters, this is a shot from the install of the trial I downloaded.
Regarding a "program" causing it, and Windows closing it, this even happens with nothing open at all, including system tray things. Also, whatever Windows says it will close, it either doesn't, or it doesn't help.
Thanks for any input.

Answer 1

The way various programs write to the MBR to store verification codes, machine IDs, etc. it is possible that something over wrote something else, or filled up the available space.
I'd wait and see if this gets read by someone with Adobe and you get a comment from them before doing something that drastic.
The way they keep an unofficial eye on the forums, I would wait at least until the end of the work day Tuesday April 21 (USA Pacific time zone) before going ahead with the wipe.
I still hope there is an answer that is better for you. I can't guarentee my answer is correct. You would just end up spending a lot of time and getting nowhere if it isn't right.
If you do do it, be sure to back up your data first!
XP-Home, and perhaps Vista as well, on operating system install first reformats ALL drives in a computer, not just the system drive. I found this out the hard way when I had a drive go out under warrenty and the authorized repair place did a re-install in spite of my telling them to just replace the drive because I had an image back-up which I would apply.
My image back-up was on the second drive. A different local shop was able to recover everything on that so I could restore the system and recover my data.
Just a heads up on that.
Bill