Hi Brian
I thought that could be the case. A few days before I capitalised the meta title, ont he 18th-19th the title was still showing as lower case, it wasn't until 1/2 way though the 20th that the title changes to caps. I checked using the site:domain.com command.
I had thought maybe a data center went down and they would need to reindex my links - its happened before - but then i have a few sites with very similar links and they remained the same...
Another thing I hadn't mentioned, and I'm not a conspiracy guy or anything but... My site was rejected from adwords the same day as the site dropped.....
I've made the content better and they are looking at allowing my site again, if they approve and my site appears in the rankings again I might become a conspiracy guy