diff --git a/src/fgai/dashboard.py b/src/fgai/dashboard.py
index 09c328c..390cae1 100644
--- a/src/fgai/dashboard.py
+++ b/src/fgai/dashboard.py
@@ -304,6 +304,7 @@ async function refresh() {
   const displayedRawEvents = mcp.status === 'refreshing' ? Number(mcp.previous_raw_events_fetched || mcp.previous_events_fetched || 0) : Number(mcp.raw_events_fetched || mcp.events_fetched || 0);
   const displayedFetchMode = mcp.fetch_mode || mcp.previous_fetch_mode || configuration.graylog_fetch_mode || 'raw';
   const displayedCoverage = mcp.coverage_status || mcp.previous_coverage_status || 'unknown';
+  const zeroRawWindow = mcp.status === 'refreshing' ? 'previous completed poll' : 'this poll';
   const rawCorrelations = data.cross_source_correlations || [];
   const correlationsCached = rawCorrelations.length === 0 && uiCache.correlations.length > 0;
   const correlations = rawCorrelations.length ? rawCorrelations : uiCache.correlations;
@@ -348,7 +349,7 @@ async function refresh() {
     `MCP coverage: ${esc(displayedCoverage)}${mcp.partial_streams ? ` (${esc(mcp.partial_streams)} partial)` : ''}${mcp.truncated_streams ? ` (${esc(mcp.truncated_streams)} truncated)` : ''}${mcp.sample_limited_streams ? ` (${esc(mcp.sample_limited_streams)} sample capped)` : ''}`,
     configuration.log_source === 'graylog_mcp' && mcp.status === 'no_streams_enabled' ? `<span class="sev-high">No Graylog streams are enabled. Open Settings, Load streams, tick streams, then click Save streams.</span>` : '',
     configuration.log_source === 'graylog_mcp' && mcp.status !== 'refreshing' && enabledStreams.length > 0 && displayedRawEvents === 0 ? `<span class="sev-high">No raw events fetched from enabled streams. Check poll window, Graylog query, stream permissions, and Diagnostics -> Stream Coverage.</span>` : '',
-    enabledWithNoRawEvents.length ? `<span class="sev-high">${esc(enabledWithNoRawEvents.length)} enabled stream(s) returned zero raw events in this poll.</span>` : '',
+    enabledWithNoRawEvents.length ? `<span class="sev-high">${esc(enabledWithNoRawEvents.length)} enabled stream(s) returned zero raw events in ${esc(zeroRawWindow)}.</span>` : '',
     mcp.coverage_warning ? `<span class="sev-high">${esc(mcp.coverage_warning)}</span>` : '',
     advisor.status === 'error' ? `<span class="sev-high">Profile advisor error: ${esc(advisor.error || 'unknown error')}</span>` : ''
   ].filter(Boolean).join('<br>');