Im having a similar problem with sony vegas 12 it comes up with a box saying Illegal characters in path, vegas will open and I can still use it if I tab out and back in,
Problem Description
Application Name: Vegas Pro
Application Version: Version 12.0 (Build 394) 64-bit
Problem: Unmanaged Exception (0xe0434f4d)
Fault Module: C:Windowssystem32KERNELBASE.dll
Fault Address: 0x000007FEFDE89E5D
Fault Offset: 0x0000000000009E5D
Fault Process Details
Process Path: C:Program FilesSonyVegas Pro 12.0vegas120.exe
Process Version: Version 12.0 (Build 394) 64-bit
Process Description: Vegas Pro
Process Image Date: 2012-10-26 (Fri Oct 26) 12:11:42
It was working yesterday now it not, I dont know if this has anyting to do with it but today I moved some files from one of my hard drives to another one, only vids and music really,which I unplugged from the computer, I dont think it had any vegas related files and also I had installed Itunes.