I have the 13" Macbook Air (2010), 4GB/1.86GHz model and my start up time use to be 14-15 seconds...today its 25-26 seconds, about 10 seconds longer. Any idea as to why? My shutdown time is normal and has not changed.
Apple's way of hinting that you upgrade to Lion
Actually, we need more data. Did you recently install anything that'll auto-boot on startup?
I can't remember, but I think I did update a few days ago. No application installations though for sure.
open terminal and type (cut and paste the commands below):
sudo chown root:admin /
sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches
*enter password after 1st command