High CPU Usage When Showing the Beginning of a Score (0.9.6 regression)

Using prerelease 0.9.6 built from source, revision 2925M on Ubuntu 9.10

Scrolling to the left of a score and letting it sit there will result in maxed out CPU usage. Scrolling to the bottom and letting it sit there will let it idle. Dragging it back over from the "hot spot" will reduce the CPU usage back to zero.

See the following video for a detailed presentation. The CPU monitor is at the bottom right of my screen (poorly pointed out by the "line")

http://dl.dropbox.com/u/373797/cpusmashing.ogv

Here's the accompanied terminal output:

$ mscore

** (:3656): CRITICAL **: atk_object_set_name: assertion `name != NULL' failed
Alsa_driver: the interface doesn't support mmap-based access.
init ALSA audio driver failed
init ALSA driver failed
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
unknown symbol , symbols 216
unknown symbol , symbols 216
preferences.checkUpdateStartup: 72
lastupdate: 31.03.2010 07:24:20.810