Hi,
Have you checked with bugs.debian.org/qt4-x11?nope. i will look now.
By the way, the safer way to work with Debian sid is to install it
under a chroot and use it with pbuilder or schroot. (For GUI stuff
you may want to add Xephyr to the mix). This way you don't bork your
working system if sid has broken something. (In the "Toy Story", sid
was the kid who would break all the toys!)
