Black screen came down told me to reboot.

Hi all,
I don't know how else to describe this. I was reading NYTimes online when the only way to explain is the top of my screen started to turn black and came all the way down to the bottom covering what I was reading but still being able to see it.
It then came up with a message in 4 or 5 languages telling me to power my computer off and back on. The computer froze up and this was the only option. I have never seen this before and wondering if anyone else has ever seen this? Could it be a virus or something? When I powered back up it came up with the report to send to Mac which I did.
Any help would be greatly appreciated.

What you experienced is a Kernel Panic. These can be caused by many things however one that occurs frequently is something having to do with the RAM. It can be caused by bad RAM, incorrect RAM, unseated RAM etc. That is where I'd start, if the machine has been operating OK then remove and reseat the RAM. If that doesn't do it you can try removing each stick and rebooting trying different combinations to see if one has gone bad. If you recently upgraded the RAM then it's either not seated correctly or incorrect RAM.
Other causes and remedies of KP's can be found at:
Resolving Kernel Panics
Avoiding and Eliminating Kernel Panics
About "You need to restart your computer" (kernel panic) messages
Roger

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Message was edited by: Fredrik Akesson

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I am not very technically at all, I am posting this because I haven't been able to get an appointment with apple for weeks.
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Black screen came down told me to reboot.

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