Just had that \MonitorOut.dll problem myself, had a look here saw no ideas so went back and ran my registry cleaner (CCleaner) . I tried immediately after cleaning and got same, so I went into REGEDIT saw nothing that would be off issue so dropped out. Thought i'd have a last try and it worked !
The way I had an issue with it was after I iinstalled Nuke, I uninstalled, thereafyter I got the dreaded .dll whren trying to re-install.
Try a reg cleaner - i've no idea why it didnt work right away, just after i'd poked around but done nothing in REGEDIT...
Hope it can help u guys still having issues. Scrag