Ok, so my Macbook is the mid-range current models. Whenever I turn it on...the computer stays on a white screen for a few seconds, then goes blue for a few more seconds, then Mac OS X, and then the bar flies right through and takes me to the desktop. I never had that initial white screen when booting up.... from what i remember. Those Macbook users.... anyone in the same boat as me? Is it b/c of Tiger 10.4.10?