When doing Debug->Set breakpoint, I see an error: Could not find file /usr/lib/nemiver/plugins/dbgperspective/glade/setbreakpoint.glade
Hmm, the actual file looks to be 'setbreakpointdialog.glade' instead of just 'setbreakpoint.glade'. I should be able to fix that momentarily. Thanks for the bug report!
Sorry for the delay; The patch is in CVS but I've been having compilation troubles that I'm poking upstream about.
This is fixed in 0.5, which is in rawhide currently, so I am closing this bug as FIXED. Please feel free to re-open it with further comments and details if the issue persists. Thanks. =)