FYI to those out there. For me at least, this has caused some wierd lag issues when initially loading the game. The splash screen doesn't show up for about 45 seconds now (just a black screen). I've had DDO "stop unexpectedly) 2 times in one night. Prior to SP, this never happened, not once.
I've heard some pretty bad feedback on SP1. I'm not sure even re-installing video drivers would help at this point, SP1 is pretty new (a week old or so now), and I doubt any updates have come to them just yet for SP1 specific issues.
I've heard people needing to re-install certain games, not sure what ones, they just said certain games, to get them working again.
For now, I'm leaving it as is, DDO runs, and I dread an install. Just be aware, it will be a little bit slower on load, and an occasional crash that hadn't occurred before may start happening now.
This is on a Windows 7, 64Bit system.