rncbc.org a.k.a. Rui Nuno Capela

Yes, Qtractor requires Qt >= 4.1 and now that you're asking, Qt >= 4.2 is the stronguest recommendation though.

OTOH, you must have some outdated packages on your Ubuntu 8.10 as I've been packaging my .debs from Kubuntu 8.04, which is the LTS base I try to follow. Please, I believe there's nothing holding you on Qt4.0, not even KDE4 for that matter.

Cheers.