Unfortunately 3 times today the game failed to resume a saved service, once with the Class 66 aggregates and twice with the Class 165 on runs from Slough to Paddington. In each case I had to shut down/ restart my computer. This has never happened before in all the years I've been playing the game on a number of machines. Because of time constraints I'm very reliant on the save game feature, so this could be a real problem, on GWE-R at least.