Well that retarded advice came from the good folks at EA. My friend was having the problem and after doing it the blue lots have not returned to their pc.
As i said i do not experience this problem....... The only reason i took the time to post all of that here is to try and help, no one said it was correct and no one said to try it

I think i found a possible solution to the blue lots problem.

Apparently this is a problem is affecting pc's especially one's using Vista because i myself own a macbook and never had this problem. Anyways here's what i noticed....

To get the game to work if its already experiencing blue lots
1. Delete the saved game folder (yes you'll lose any lots and families in the neighbourhood so if you could package these, do so)
2. Hold the windows flag key and hit R  (The "Run" box will appear)
3. Type misconfig and click continue
4. A system configuration window will appear
5. Click the startup TAB (not the start up in the General Tab)
6. Click Disable ALL then click apply
7. Click the Services TAB, YOU MUST CLICK "Hide All microsoft sevices" option at the bottom (You'll See a Check mark in the box)
8. THEN click disable all (the disable all option would be faded out after you click it)
9. Click Apply
10. Restart the computer for the effects to take place

At this point your game would work perfectly.

Now this is what i noticed, the game would work fine because i started and quit the game about 10 times without the blue lots occurring, even after visiting the world locations
What i did notice however is when you turn off or restart the computer the blue lots would come back.
SO every time you restart or turn off the computer you must do steps 1 -10 mentioned above. If you are like me and never turn off you laptop but only make it sleep you are fine because the settings are saved and only reset when you take the pc off or restart the pc.

So Long story short do step 1-10 if you take the pc off or restart BEFORE opening the game other wise the blue lots would come back so i stress... Do steps 1-10 BEFORE opening the game. Hopefully by now the system configuration is pinned to your start menu to elimate steps 1-4. You know if the settings are saved because in the Start up tab would have noting checked off and the systems tab would have disable all faded out.

Good Luck Guys.... I wish you luck