"Select files to share" is not active

"Select files to share" is not active. Cant press and upload any files.

Opera 12.02 (1578) Windows 7 x64.

Version: 
12.02
Assembly:
1578
Platform:
Win32
System:
Windows 7 (x32 and x64, 2 home PC)
Module XHTML+Voice:
Plug-in not loaded
Identification of the browser:

Opera/9.80 (Windows NT 6.1; WOW64; U; RU) Presto/2.10.289 Version/12.02

Internet Explorer 9 problem too.