- Many fixes to the four circle codes during taking the new code into

operation.
- Fixed some missing output
- Second generation histogram memory and velocity selector objects
- Fixed a problem in diffscan

macro.c

@@ -1082,6 +1082,11 @@ int CaptureAction(SConnection *pCon, SicsInterp * pSics, void *pData,
 	    SCWrite(pCon, "EROOR: out of memory in capture", eError);
 	    return 0;
 	  }
+	  /*
+	   * This line is required to support nested captures 
+	   */
+	  comCon->data = NULL;
+
 	  memset(buffer, 0, sizeof(buffer));
 	  command = Arg2Tcl(argc - 1, &argv[1], buffer, sizeof buffer);
 	  if (!command) {