thanks Andrew. as an upgrade from BIAB 2008 with some extra styles discs i bought the 2018 ultrapak and then the 2019 pluspak upgrade and the 49 paks etc and then the full set of extra styles so all the latest stuff is in my download back ups. if the old midi styles are part of the main program install then a reinstall from scratch if i get a new pc would seems straightforward even if a bit lengthy!