TechTools Deluxe (Re: Video RAM and reinstall)

Question

I have the annoying screen inverter/logic board whine (yes I know this has been talked to death here), sometimes not so bad and sometimes I can hear it over a desktop PC is the bearing going out in one of the fans. I happen to be visiting family in a city with an Apple Store this weekend, so I thought I would talk to a real person face to face. Anyways, I ran the TechTools Deluxe CD that I received a week of so after I got my MacBook Pro. To see if there was anything else besides, my whine to mention to them and will you look what came up
Video RAM
Failed
Video RAM, as all components of your video circuitry, must be fully functional for graphics to be properly displayed. Damaged VRAM can cause missing bits, screen noise, system lock ups, or freezes. TechTool Deluxe tests the VRAM on the Macintosh main logic board, as well as some third-party video cards.
If the VRAM test should fail, try these steps in order and run the test again after each step:
o Quit all other applications.
o Restart the system.
o Check any recently-added hardware for proper installation.
o Run the computer from another volume (if available).
o Reinstall the OS.
o Contact AppleCare.
I have done everything except reinstall the OS and contact AppleCare.
Anyways I wanted to know first of all if anyone else had gotten this error and if so did a reinstall fix it? Secondly how hard is the reinstall, I come from years and years of DOS, 3.1, 95, 98, Me, and XP, and one thing all of them have tought me, is reinstalls are horrible, drivers don't work again, ect. So is OSX easy or should I just ask them to look at it this weekend?
Oh and the Apple Diagnostic on the OSX cd 1 says everything is fine.

Answer 1

Well the apple test (on disk 1 of OSX) states that nothing is wrong. Though I will test again when the temp gets high since some people had been detecting problems.
as for 10.4.6 I downloaded it the other day.
I repaired the permissions had a couple things that it corrected (I don't know if I posting them would do any good) Out of curiousity how to permissions get incorrect? I'm so used to the windows file structure and DOS before that that i am a little confused. The last apple used alot before this macbook was an old Applee IIE.
and the TechTools still says there is an error, every time I have run the test. Though there have been some differences when I reboot or turn of and wait a second and then restart.