SYMPTOMSOn Windows 7 Nuke instantly crashes when you attempt to open a script or when you use the ScanlineRender node.
CAUSEIn some cases, if you have the anti-virus/security software called AVAST installed on your system, it can cause this crash.
RESOLUTIONDetermine whether you have the AVAST anti-virus software installed. If this is the case, completely removing it may fix the problem.
Uninstall the AVAST anti-virus software and then run Nuke. Then, try to open a script or use the ScanlineRender node.