I have a new 2.4 GHz MacBook with 2 gigs of RAM ... and the keyboard response is very slow, especially the delete key. I type a word, and my fingers are faster than the display time. This is particularly noticeable when backspacing and correcting typos. Anyone else experiencing this problem? Better yet, any ideas to improve response time? I'm almost missing my old Windows based machine. Thanks in advance for any info!