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Do a Time-Machine backup with a portable hard drive to save your Data and Programs.
Then stick in the USB stick with the Mac Software, select Disk Utility before Installation and delete the MB Airs hard drive first, then do a clean install of Snow Leopard, download and install the updates and then restore the system with your Time Machine backup. -> DONE.

Thank you very much! Doing it now. I was just worried that restoring from a time machine backup would also restore the "bad" files as well. Admittedly, I don't understand everything yet (im still learning how to use a mac).
 
Thank you very much! Doing it now. I was just worried that restoring from a time machine backup would also restore the "bad" files as well. Admittedly, I don't understand everything yet (im still learning how to use a mac).

It shouldn't since time machine is just saving personal data, documents and programs, basically everything in your User-Account Folder.
 
It shouldn't since time machine is just saving personal data, documents and programs, basically everything in your User-Account Folder.

Time Machine backups up the entire computer, not just your user account. That's why if you restore from a time machine backup you can restore apps and system settings also.
 
+1 do THIS and you will be fine. People dont pay attention or read. Incremental upgrades fix the issue.

I did it incremental from a fresh format (when I got the air) and I still have 'bad' numbers. The machine still works just fine however, but I won't complain if I can get even more performance from it! :D
 
10.6.7 is garbage.

I have a ultimate 13'', once i installed .7 i noticed a immediate drop in performance system wide. I dont game, but youtube videos became jerky, system animations became jerky, slower responsiveness, and when i had a bunch of apps open, the system just became funky..

soooo.. i did a full clean reinstall.. back to 10.6.7.. exact same behavior right "out of the box"

Wiped again... when to 10.6.6.. smooth as butter.

Im sticking with 10.6.6 till .8 comes out... i hear you guys about the incremental upgrade path MAY not cause these issues.. but meh.. i dont want to risk it and really what does .7 add?

Just another voice in the choir.. 10.6.7 is F*CKED for us air users. WTF apple.
 
Time Machine backups up the entire computer, not just your user account. That's why if you restore from a time machine backup you can restore apps and system settings also.

But it doesn't save drivers and such, which is what I meant. So restoring the System wouldn't reverse it the performance issues it had before.
 

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