intiter = RolesListPrefPtr->find(RolesListIndex);
- if (intiter->first == RolesListIndex && intiter->second > 0){
+ if (intiter->first == RolesListIndex && intiter->second > 0 &&
+ intiter != RolesListPrefPtr->end()){
sliPriority->SetValue(intiter->second);
sliPriority->Enable();