duocart, although not familiar with overture i'm assuming your midi routing is: overture - midi yoke - performance tool - gigastudio.
the error message *The specified device is in use* usually comes up, if a midiport (physical or virtual) is already used by another application and is not a multi-client device, so probably the in-/out-settings are not correct.
also the performance tool not passing tempo changes is a hint more than one dedicated midi signal is passed over to the performance tool inport or to nemesysport.
having the performance tool in your chain, you should have midi out on the performance tool set to nemesysport and the respective inport in gigastudio set to none. performance tool midi in should use midi yoke out and overtures midi out to be routed to midi yoke. finally make sure, any midi in of overture does not listen to *wrong* or *all* midi ports available on the system (a loop my occure otherwise)
christian
the error message *The specified device is in use* usually comes up, if a midiport (physical or virtual) is already used by another application and is not a multi-client device, so probably the in-/out-settings are not correct.
also the performance tool not passing tempo changes is a hint more than one dedicated midi signal is passed over to the performance tool inport or to nemesysport.
having the performance tool in your chain, you should have midi out on the performance tool set to nemesysport and the respective inport in gigastudio set to none. performance tool midi in should use midi yoke out and overtures midi out to be routed to midi yoke. finally make sure, any midi in of overture does not listen to *wrong* or *all* midi ports available on the system (a loop my occure otherwise)
christian
and remember: only a CRAY can run an endless loop in just three seconds.