Graphic problems with Macbook Pro Late 2011 13"

Question

I'll try to explain it as clear as possible. This started to happen a couple weeks ago:
My Macbook screen started to being white-blurred, and the image slows down while this happen. At first I thought that was happening randomly, but then -I guess- I realised that it was lid-related; when I open the lid more than 90 degrees the problem started to happen, sometimes it starts to happen even if the lid is in its 'working fine area' though , but after moving the lid up and down several times, it gets 'fixed'... until it happens again. There are times when it doesn't get fixed instantaneously, and it's really driving me crazy.
My first thought was that it might be the flex (not sure if this is the right name of it tough), I mean the cable that goes from the screen to the logic board. If so, or even in another case scenario, I have an Early 2011 Macbook Pro 13" where I can use any part, except for the logic board, if needed.
Thanks in advance.

Answer 1

Well the Apple logo will always be visible through the screen when there is a fairly bright light behind the screen.
That is totally normal.
As for the freezing and since this is your first Mac computer I would like to make you aware of one thing.
The way Mac OS X operating system works is slightly different then Windows. In Windows when you click the X in the upper right hand corner of the program you are using that program closes freeinig up the memory it was using. In the Apple OS, OS X, when you click the X in the upper left hand corner of the windows you are using all that does is close that active window. It dos not close the program. So if you have started up 2-3-4-5-6 programs to do something in them and then clicked the X all you have done is closed those windows for all those programs. The programs is still running. So you can end up with several programs using memory when they shouldn't be. You have to actually close those program by first using Command+Tab to see what programs are still open then go to the menu bar on the right side where the name of the program is displayed and click on that name and select Quit Program Name. Or once the name of the program is in the menu bar press Command+Q (Quit) to close that program.
Get in the habbit of always using that keyboard shortcut when you are done using a program.
Having multiple program open will cause the system to run slow.
The hard drive Apple is putting the newer Macbook Pros are of the slower type. Running at 5400RPMs as opposed to the faster 7200RPM models. Why I don't know as the faster drives don't cost that much more. Because of this all program run slightly slower. To open, to save files to and when used as a swap disk to expand on the physical memory in the computer. Which in turn will make the system seem sluggish and can casue some freezes.
So make sure you have closed all programs before opening another, and only have at the most 2-3 progams open at the same time.