diff --git a/src/server/distrend.c b/src/server/distrend.c
--- a/src/server/distrend.c
+++ b/src/server/distrend.c
@@ -444,8 +444,10 @@ int interactiveTest(int test, struct gen
        fprintf(stderr,"Slave Key: ");
        scanf("%d", &slaveKey);
        fprintf(stderr, "Got frame: ");
-       find_jobframe(conn, slaveKey, &jobKey, &frameNum);
-       fprintf(stderr, "jobKey: %d, frameNum: %d\n",jobKey,frameNum);
+       if(find_jobframe(conn, slaveKey, &jobKey, &frameNum))
+         fprintf(stderr,"No frames available to render!\n");
+       else
+         fprintf(stderr, "jobKey: %d, frameNum: %d\n",jobKey,frameNum);
        break;
      case 2:
        fprintf(stderr,"Job key: ");
diff --git a/src/server/mysql.c b/src/server/mysql.c
--- a/src/server/mysql.c
+++ b/src/server/mysql.c
@@ -60,9 +60,11 @@ int mysqlResultFree(distrend_mysql_resul
 int distrend_mysql_getint(MYSQL_ROW row, MYSQL_FIELD_OFFSET column, int32_t *theint)
 {
 
-if(!row[0] || !row[1])
-  fprintf(stderr, "Columns are null!\n");
-  *theint = atol(row[column]);
+  // no frames to render
+  if(!row[0] || !row[1])
+    return 1;
+  else
+    *theint = atol(row[column]);
 
   return 0;
 }
@@ -274,10 +276,8 @@ int find_jobframe(distrend_mysql_conn_t 
       return 1;
     }
 
-  distrend_mysql_getint(row, 0, (int32_t *)jobkey);
-  distrend_mysql_getint(row, 1, framenum);
-
-
+  if(distrend_mysql_getint(row, 0, (int32_t *)jobkey) || distrend_mysql_getint(row, 1, framenum))
+    return 1;
   
   mysqlResultFree(result);