the laser dosnt get out of wack. the lasers that sony put in them if they get even a little dirty they dont work... try compresecx air and a dry Lense cleaner.
Then call SONY Support and bitch.. if it is after 60 days then they no longer Warrenty it.
If they dont you can clean it yourself with a q-tip
|-------------------------|
|.X ..|.o.......X......X.|
|.....|...................|
|.....|.o.......o.....o..|
|.....|-------------------|
|.X.............X.....X..|
|-------------------------|
EDIT
k ignore the .'s spaces didnt show on thread.
This is a Ugly Diagram but ya
Turn your PS2 Upside down it should look like this Diagram
Ok the Capital X's are the screws you take out. the o's you leave alone. there is also a Seal you have to break. Make sure it is OFF
Then turn the PS2 Over again and take the cover off.
There is a wire conncected to the Eject and Power buttons
On the right side (Same side as wire) there is another cover
This should cover the CD.
There are 4 very small screws... (You need a EyeGlass Screwdiver)
Remove those 4 screws and remove the cover.
Do not use Rubbing Alcohol.
USE Windex or NOTHING.
Wipe the lense very SOFTLY
Remember I did this probably over 100 times over the year... Fixed it every time. but a month back i did it and fucked the lense up. I BOUGHT a new PS2.
hope this helps