It is dead two days ago after I purchased it three years ago in May 2007 with three years warranty. I am still trying to find out the reason. We moved to a new house and are still sorting things out (no computer desk). So I placed the laptop on my couch (with the cover which is not cotton made). Every night for the past two months I watched the online HD movies for two hours a night. I could feel the bottom was hot but ignored it as there is no problem. In Sep, I bought a Seagate Momentum XT Hybrid 500GB and replaced my old 120GB. After that, there were quite a few times the system is frozen and blue screen. So I updated the BIOS to the latest one (April 2010 version). It seems no problem after that but this situation didn't last long. Two days agao I took it to my office and was trying to create a DVD-video (the machine has been run for the half day) and wanted to click to other programs. The screen became color streaking and no image appeared. I thought it will be the HD issue and replaced back the old one. It is still the same. I tried to connect it to the external LCD display and finally got the message HARDWARE MALFUNCTION. CALL YOUR HARDWARE VENDOR FOR SUPPORT.NMI:PARITY CHECK/MEMORY PARITY ERROR***THE SYSTEM HAS HALTED***
I talked to one of my IBM friend(programmer) and she said to me she has been using T60/T61 and three years elapsed and the unit is dead with the screen. She commented on 60 series has bugs.
So my question is
1. Is my putting the laptop on the couch (heating issue) contributing (accellerating) to the death of my R61?
2. Or my hard disk replacement?
3. Or BIOS upgrade?
4. Or Virus (I got my AVAST and Microsoft Security Essential and downloaded a Spyspot which found some unwelcome entries and I removed them without looking)?
5. Or really Lenovo quality problem (I still have my T23 running well although slow of course I treated that one as a baby)?
Thanks a lot and any suggestion to save my R61 will be highly appreciated.