When importing files to Question Bank previously exported from there in any format like MOODLE XML, when trying to import using option "Import from file upload..." DON'T WORK looking like file not uploaded and a message showing this: "Parsing questions from import file. Cannot read import file (or file is empty) An error occurred during import processing".

If you use the other option down named "Import from file already in course files..." that allow you to upload a file and select it IT WORKS PROPERLY with the same file.

• • • Updated 28-04-2009 ***
      Just discovered what's happening: Looks like not taken TEMP variable enviroment properly and using a ¿default? one where Web Server user don't have write permissions to upload file:

TEMP and TMP variables are pointting to "C:\TEMP" and discovered that it's training to write in "C:\WINDOWS\TEMP" so getting error "Cannot read import file (or file is empty) An error occurred during import processing".

¿Perhaps an error taken environment?