I've seen this issue on too many Windows machines. The owner installs a codec and the machine crashes. We "reformate the hard disk and restore factory settings, etc." and the machine comes back.
Many owners are upset about that and will not pay for support on this issue.
The industry doesn't seem to have an answer yet.
Again, if installing video codecs crash a machine, and since Acer didn't write that codec, how can Acer be at fault?
Maybe someday all this will be sorted out.
I bought Acer Aspire 8940G, thinking that the bigger screen (18.4 inches), and fast processor (core i7), would give me a an edge. Instead, I got a lemon, as soon as I try to watch a video (e.g., Youtube) in the full screen mode, the computer's screen goes blank and there is a loud static sound and the only option is to shut it down because the system goes unresponsive.
Sometimes the proplem would appear after several minutes of watching the video. I told Acer about it, they asked me to send it their workshop, which I did. The laptop came back with the same problem. I called them again, send the laptop to the workshop again ... same problem. I called their tech support dozens of time and have gone over with them over several procedures, including restoring factory setting, cold boots, video codec installations and what not, but the problem persists. Now they charge me for the tech support and say that it's not their fault and I should contact Microsoft or Adobe or Google, etc., as there is problem with their video condecs and not their laptop.
What are my options here? This thing has caused me great misery and suffering. I haven't been able to do any work on the computer ever since I bought it in January, because I don't know how many time I would have to formate and reformate the hard disk and restore factory settings, etc.