I have not experienced this myself, however I did a quick search through Google and it sounds like your OpenOffice install may have installed Windows components that conflict with older components. When your run mIRC, Windows decides which components to run, so there isn't anything you can change in mIRC to resolve this. You would probably need to re-install the VC++ runtime components for your system to fix the issue. If you manage to resolve the issue please let us know.
