not able to upload images with Hebrew names

[ohameiri]

When i try to upload a hebrew named image it dosent show on the gallery,
if i try to access it directly i get

Debug info:
Error code: filenotfound
Stack trace:
line 467 of \lib\setuplib.php: moodle_exception thrown
line 1914 of \lib\filelib.php: call to print_error()
line 4142 of \lib\filelib.php: call to send_file_not_found()
line 38 of \pluginfile.php: call to file_pluginfile()

I had this problem about a year ago across files in the site, and i worked it out by turning SLASHARGUMENTS off.

Omer