diff -r 5b9d4d8641ce -r ae255c9aa552 sysperfana/perfinvestigator/com.nokia.carbide.cpp.pi.power/src/com/nokia/carbide/cpp/internal/pi/power/actions/PowerStatisticsDialog.java
--- a/sysperfana/perfinvestigator/com.nokia.carbide.cpp.pi.power/src/com/nokia/carbide/cpp/internal/pi/power/actions/PowerStatisticsDialog.java	Wed Jun 23 14:49:59 2010 +0300
+++ b/sysperfana/perfinvestigator/com.nokia.carbide.cpp.pi.power/src/com/nokia/carbide/cpp/internal/pi/power/actions/PowerStatisticsDialog.java	Wed Jun 23 15:05:09 2010 +0300
@@ -264,6 +264,9 @@
 			PowerTraceGraph graph = trace.getPowerGraph(0, NpiInstanceRepository.getInstance().activeUid()); // since graphs are in lockstep, any will do
 
 			int index = graph.timeIndex(selStart);
+		    if(index == -1){
+		     	return;
+		    }
 
 	        // count time before the first sample as a bunch of zeros
 	        if (selStart < trace.getFirstSampleNumber()) {