A never ending series of problems

Question

I've had my Lenovo 3000 V200 for about a year and a half now.  I have the 3 year on-site warranty so I've got that going for me.
Everything was great with the computer for the first 1+ year.  Then, a few months ago the hard drive failed.  I've always been extremely careful when moving the computer around, never drop it onto the desk or anything like that, so I figured it was just bad luck.  Lenovo sent me a replacement hard drive, I replaced it, lost my emails (everything else was backup up regularly) and thought that was that.
Then my computer started overheating - I think it probably started about month ago, but honestly I probably didn't recognize a problem right away.  The computer would shut itself off, and I didn't know at first if it was the operating system, or other software, or the computer.  Then, I tried backing up the computer to DVD (about 30GB worth of data) and it shut itself off after 10 minutes or so.  After multiple attempts, it was clear the computer was overheating.  I posted a question relating to this on this forum a few weeks ago.  The suggestion I got was to call for service.
I did just that.  Lenovo care originally suggested that we replace the fan.  I knew that wasn't the problem because the fan was actually blowing strongly at high speed constantly.  I suggested it might be something with the system board, but they were reluctant.  Finally they agreed to replace the fan and CPU.  I cancelled my schedule for the next day, waited for the tech, who came and replaced the fan and CPU.  This actually seemed to solve the problem.  The computer would no longer shut down after 5-10 minutes.  When I asked the tech if we should test out the system, he declined, but things seemed to work fine.  Unfortunately, that wasn't the end of it.
A few days later, I noticed that the built-in Bluetooth was no longer functional.  I don't use bluetooth every day, so I didn't notice until a few days later.  I went through and checked the software, the drivers, the access connections, everything.  Basically, the computer showed that the hardware was not present.  Again, I called Lenovo Care.  They suggested all manner of things, wasting 2+ hours of my time trying things that were just asinine.  Finally, they agree that there was a problem and agreed to send someone out to replace the bluetooth module in the computer.  This was last Friday.  Again, I cancelled everything on my schedule to wait around for the tech.  The same tech came out and replaced the module (who knew this sort of thing could take several hours).  This time we tested it out after he finished.  Same thing, no bluetooth hardware detected.  He then got on the phone with Lenovo Care who instructed him to try all the same asinine things they asked me to try the day before.  In fact, I was joking and having a laugh with the tech as he worked, describing what they suggested.  They must have a playbook they follow, without actually thinking about a problem.  Anyhow, they couldn't get it to work, and the tech couldn't do anything else.  The last thing they suggested was to update the BIOS - even though the Bluetooth as working just fine before the first service attempt.  I could see that there was nothing he could do for me so I agreed.
I updated the BIOS, pretty straightforward process.  Not suprisingly, this didn't fix the problem, so within an hours after the tech left, I was back on the phone with Lenovo Care.  I described the problem and after another half hour on the phone they concluded that the system board needed to be replaced, perhaps because it was damaged due to overheating or whatever.  Like I didn't already suggest this originally.  Anyhow, they set up a visit for today (Monday), so again I cancel appointments and free up my schedule for the 3rd time in two weeks and sit around all day...AND NOBODY SHOWS UP!  I call in a 7pm to get an explanation as to why so they transfer me over to dispatch.  Honestly, a customer shouldn't be expected to know how everything works behind the scences at a company to get service.  First, the guy in dispatch lies to me and says that everyone is gone; when I refuse to accept this he miraculously finds someone to speak with.  They claim that they tried to call but were unable to reach me.  It's the exact same number they reached me at twice in the past two weeks!  After an hour on the phone and on hold, I get cut off.  I call back and speak to another rep who agrees to put me in touch with a manager.  After 6-7 mintues on hold, I get cut off when he tries to transfer me!  So, I call back, get another rep who looks up the case, then spend 15 minutes on hold.  Finally a manager gets on the phone with me and spends 20-30 minutes explaining that he cannot do anything at all for me.  And get this, after placing my call at 7pm and being on hold with various parties for 1:15, they tell me everyone in dispatch left at 8pm!
Now they can't even schedule someone to come out tomorrow, because it's too late to schedule a next-business-day repair (completely ignoring the fact that today was a business day when nobody showed up).   So now, the best possible result is that I waste another entire day waiting around for someone to fix this computer.  The worst case, of course, is that they don't show up again, or they show up and still don't fix the problem (seing as how they've failed 3 times already I don't have much confidence).
Thank god I paid extra for the 3 years of on-site service, however the actual service delivered has been quite substandard.  I know that some companies (Best Buy for example) will replace a computer if they cannot repair it in 3-4 tries.  So, what should I do.  I'll waste another day waiting around for a tech to show up, but then what?  Does Lenovo have a lemon policy for computers that they cannot fix after a reasonable number of attempts?  Do they have a policy for compensating people for missed appointments?  What about simply substandard service?  Anyone have suggstions on what else I can do, or who I should speak with?  I really feel that this situation is quite ridiculous, and I'm extremely frustrated with way these problems have been handled.  I haven't yet been able to speak with someone willing to take responsibility for the service that Lenovo delivers - just people saying "that's not my department", "I'm limited in what I can do for you" and on and on.
Thanks.

Answer 1

Boot off your *original* Install Disk while holding down the *d key*, (not c key), then run the extended Apple Hardware Test. Some disks require you to use the Option key at bootup to select AHT. Some models have a separate AHT CD.
The Memory test can really only be trusted if it finds a problem, not if it doesn't find a problem.
Memtest OS X...
http://www.memtestosx.org/joomla/index.php
Rember is a freeware GUI for the memtest ...
http://tech.kateva.org/2005/10/rember-freeware-memory-test-utility.html
Get Temperature Monitor to see if it's heat related...
http://www.macupdate.com/info.php/id/12381/temperature-monitor
iStat Menus...
http://bjango.com/mac/istatmenus/
And/or iStat Pro...
http://www.islayer.com/apps/istatpro/
If you have any temps in the 70°C/160°F range, that's likely it.
Except IntelMacs...
http://www.intelmactemp.com/list