Comment 4 for bug 598010

hello and thanks for your prompt answer
I'm new and unexperienced user so I need easy instructions
I did the sudo apport command (do I need to do it after a crash or whatever other moment is ok?)
it said: apport start/running
so I don't know if the crash report is generated or not. what I'm suppose to see?
after that pc starts crash badly several time: screen goes black and blinking I tried to write down the errors message but it goes so quick I didn't have the time

best regards
debora