Vegas Pro stopped working

Chtěl jsem si nainstalovat trial programu Sony Vegas Pro. Bohužel mi to hází chybu.

Problem Description
Application Name: Vegas Pro
Application Version: Version 11.0 (Build 683) 64-bit
Problem: Unmanaged Exception (0xc0000005)
Fault Module: D:\Program Files (x86)\Sony Vegas\x86\FileIOSurrogate.exe
Fault Address: 0x000000006986AA99
Fault Offset: 0x000000006986AA99

Fault Process Details
Process Path: D:\Program Files (x86)\Sony Vegas\x86\FileIOSurrogate.exe
Process Version: Version 11.0 (Build 683)
Process Description: File I/O surrogate (not visible)
Process Image Date: 2012-04-27 (Fri Apr 27) 14:42:22

Zkoušel jsem reinstall, ale nepomáhá. Děkuji za rady!