BUG SPLAT at SU8 start up [SOLVED]

[rogalxxx]

Hi
Just bought a license for SU8 Pro and installed TR 1.4.5.
This is a 100% clean install and no other plugins were installed.
When I rename twilight.rb the program runs fine.
any idea what might be wrong?
update:
unstalled SU, restarted my PC, reinstalled SU and TW.
PROBLEM SOLVED