- to avoid SegV a protection is added in case the needed .xpm files are not found (for some reasons)
- to avoid SegV a protection is added in case the needed .xpm files
are not found (for some reasons)


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@16652 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,dawehner/root