System is a nice working Windows7x64 on a Samsung RF711 notebook - until yesterday with TI2012 Build 7133.
Today I installed the new TI2013 Build-Nr.5551, German - and had to wait a long time to get open "computer" - and then the failure message Com Surrogate came permanently when trying to open files. See attachment.
After deinstallation and reinstall of TI2012 everything is working fine again.
Not nice to have paid for trouble......