Sorry for the crap quality (and dodgy crop).. The top picture is more jaggy than it looks here.. Flickr's scaling made it prettier than it really is.
It's only the graph parts that have changed by the OpenGL conversion..
The Event Flags shadow is very tiny here.. not an awesome example of it, however you can just see it.. It's easier to spot at full scale.
AntiAliasing can be turned off in the menu for those who like sharper (ugly) pixels.
You'll also noticed I finally bothered to fix the y-Tickers..
The top right numbers in the line-graphs is just temporary debugging info..
That's not my pulse-ox info.. Is my cpap data though. A colorful night in the event flags..
Before

After OpenGL
