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After fresh installation Robot Strcutural Analysis 2012 pro shows a splash screen on start and closes.
Win 7 Pro 64 bit.
It could be a pit file problem:
Basically, I would copy the .pit file from a working system to a non-working system.
You can also check out this solution:
http://usa.autodesk.com/getdoc/id=TS15176093
The "cascadeinfo.cas" file issue should be resolved in all products in 2012 or higher.