Do you have anything running that would block scripts? Anything added lately in the way of security/AV? I know from time to time, DX stops working for RnD and he has to completely remove and re-install it to get it working again. I believe Philly, his other tester, has as well. I've never had the problem so I'm not much help but I'm sure he has a thing or two you can try.
He's at church atm, but I'll make sure he sees this post.
I missed church this morning due to a bad night, healthwise.
BDBF, I usually get this problem every month or two.
I usually have to uninstall DX with Revo, reboot, run a registry cleaner, (usually ASC Pro, or CCleaner, or both), reboot again, and then reinstall. I have done this at least 8 times last year. Works every time.
I have no idea what is borking it to begin with.
Finding the cause would make me happy.