Yeah, might as well try the regular launcher and see if that works.
If you could post a wxLauncher log, that'd be helpful. You can find it by pressing Windows+R, typing %appdata%\wxlauncher in the "Run..." box that appears and pressing Enter, and then looking for wxLauncher.log in the Windows Explorer window that pops up. A debug build of the launcher (available in the release thread) would give a more detailed log.
If you're interested, I'd like to work with you sometime on figuring out what issue you're having with wxLauncher (I'm one of the developers).
EDIT: Slight clarification.