I also have one machine (my new, intended to be main one!) that also will not run, does the same split second splash screen, then its gone.
Computer is a Win 7 64b, i5-4690, 8Gb RAM machine. Have loaded it on a older Core 2 processor Win 7 64b, and a i7 Win 7 64b laptop... they all happily run it.
I've tried installing as administrator, and not, removing Java and installing the latest v7, and then upgrading back to v8 (which I had been running first with REW 5.10) no joy. Running as admin or not seems to have no effect for me. Tried to edit the mem control file/line tonight, but it said I didn't have access to the file, (?) have to try that later.
I'm looking for any option I might be missing... am I misunderstanding what fixed it for Marcus?
I cannot run 5.11 as a normal user.
Double clicking the shortcut I see the splash screen flash by.
If I try to run it from the command prompt using the java etc command I get:
Exception in thread "main" java.lang.NoClassDefFoundError: com/install4j/api/launcher/StartupNotification$Listener
Running as administrator in the normal user context works.
I am downgrading to beta 24: I cannot find the release candidate