Kent
i tried your suggestion and its still the same.

i tried uninstall and then reinstalled from bb installers folder image 1
which installed into program x 86 ik multimedia amplitube 3 image 2
in the amplitube folder there doesnt seem to be an exe file to open amplitube3

when i try the authorization manager and get onto ik multimedia site my products.
it doesnt show amplitube3 but does show amplitube 3 custom shop so i used that serial to paste into authorization manager .
this maybe wrong but i cant understand why it has been working fine since i originally installed and authorised it and im not sure if AMPLITUBE3 is the same as AMPLITUBE3 CUSTOM SHOP.

my next step is to contact ik media unless PG music can sort me out.
i only mentioned it here because of the original post.
thanks for any advice.

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rebuilt styles,songs and real tracks.
win 10...amd a10 radeon r6 4c+6g 1.8ghz
64 bit hp envy
biab 2023 with 1004 build. styles 1 to 429 plus extras 1,2,3,4 and 6.
running as admin,cleaned up returned to factory settings.