Also, it may not be the case, but i would be surprised if MS didn't try and have the sp4 launch and win 10 launch coincide. I imagine the last thing they want is to launch the sp4 and then a month after new owners have gotten used to it, flip their operating system and experience upside down with an upgrade to 10.
Damnit. Unisstalled the graphics drivers to try and sort out my second display, no idea why it's all of a sudden thrown a hissy after so many months of issue-free use, and update just plain won't find me a replacement driver. Even did a refresh but to no avail.