[TYPO3-english] TYPO3 6.2 alpha 2 permissions problem

[soee]

With alpha 2 of TYPO3 6.2 new permissions are check/set and now i can't make backend to get access to files from typo3tem/compressor. All css and js files backend want to load get:

GET http://domain/typo3temp/compressor/prototype-f82e86e47c89b20543cdc012162581b5.js 403 (Forbidden) backend.php:35
GET http://domain//typo3temp/compressor/effects-d4a08c79e23a478b4a23a2e5869e859b.js 403 (Forbidden) 

any idea what the problem exactly ? 

*6.2 alpha 1 worked fine