T61 display problem

Question

When I use computer watching the movies, the screen became twinkling,then the color turn pink and the computer  frozen. I restart the computer, there are lots of vertical lines on the screen, even can't see the THINKPAD logo. Try several times, enter the operating system, but after run some programs, the problem heaped again.
This is already the third time computer became this, the last two times, I sent my computer to IBM for repair, they change the system board. It's just 1 month since the last repair.
I'm very confused about this, the computer has been repaired twice as the same problem, but just one month, the same problem occurs again. I'm worry about whether they can repair my computer totally good.

Answer 1

those vertical lines may not be anything to worry about since contemporary video controllers are equipped with miniscule amounts of cache RAM for increased performance.
Restarting the system, even shutting it down for a few seconds before restarting can still resurrect video images from the cache which isn't as stable to CF but still has enough structure to retain those fossilized images even if just brifely at powerup.
This phenomonem of "ghost remnants" is a growing area of interest for the Internet Security  / Data Forensic profession who are working to develop better and more utiltiies to retrieve these fragments since depending on the situatio, ...it is possible to retriev passwords in a vulnerable and unprotected twilight between boot up and shutdown.
Before you try sending it in again, consider booting an entirely separate OS such as KNOPPIX LIVE edition which should support all of your drivers inclduing vid and audio and it includes a dvd decoder function.
If you have only one CD the Ultrabay, then start knoppix with a copy to ram switch when you see the system start, type the following without quotes:
knoppix copy2ram        or
knoppix copytoram
Give it a few minutes as the CD vaccums up about 700MB of RAM to use a virtual disk, eject itself and automatically logon. it is a better idea to remain disconnected from any network when executing this step since the Knoppix distro could ve vulnerable to a new hack  of if the authors failed to patch it.
Play any of the problematic DVD's inside this LINUX environment to see if the problem recurs, if the promblem persists then it is time to iniatea another repair ticket.
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