Ошибка PS cs4
 

Пишит ошибку вот такуюThe file '/home/nikita/Загрузки/ps1101_ru_en_port/Photoshop CS4.exe' is not marked as executable. If this was downloaded or copied from an untrusted source, it may be dangerous to run. For more details, read about the executable bit.Почему? =(