Thanks, Homy, have not tried that. Did see a suggestion of disabling the 'auto' graphics switching, and that stopped the games launcher from crashing, but my installed games were not available for some reason. Now trying to reinstall, but have a huge amount of 'purgable' storage, which the installer does not acknowledge so it thinks I don't have enough storage (sigh). Am now struggling with how to clear out that 'purgable' storage. Rebooting seemed to be the best option, but that did not clear it up. aargh, nuthin's easy any more.