There is problem with Windows 7 preinstalled images on some computers. In regional settings change locale to English and back to Polish.
More info here: http://forum.pspad.com/read.php?1,55507 In the last add is link for MS APPlocale utility and link to explanation -- <http://forum.pspad.com/read.php?2,56657,56658> PSPad freeware editor http://www.pspad.com
