All programmers are playwrights and all computers are lousy actors.
[Author Unknown]
My friend and client, Jim Miller, maintains a photoblog named The Contemplative Photographer. This morning, he called to say that he had looked at his blog on another computer and the header didn’t look right. It defaulted to the original template. If you have time, would you take a look at his blog at this LINK, and let me know if the header looks similar to the image above? What browser are you using? Are you on a Mac or a PC (Windows interface)?
P.S. (5:45 p.m.) This was great. I can’t tell you how much I appreciate your help. I do believe it is fixed as far as I can fix it. Thanks so much.
Knitting, writing and other joys 
I’m using IE version 7.0.5730.11 (with which I am thoroughly unimpressed) with a Tablet PC, and the header popped up just like you hav pictured. It was the last thing on the page to load, but it did load on the first try. BTW, I’d like to comment that both of your blgos look wonderful in portrait mode on the tablet. Most pages are alright, and too many look really bad, but having the bars only on one side really keeps things nice and organized for the long view without requiring side scrolling. Thanks!
Windows XP, IE 7 had the default load and then a second later the custom header appeared. On a second attempt, only the custom header appeared.
Windows XP, Firefox 2.0 browser, the default template loads, and then in a second or two, the custom header loads. Same with IE 6.
It has reverted on mine. PC — IE 7 Windows interface.