When I click the bpm box to enter a value manually buzz freezes and then displays an error message when I close it. This doesn't happen when I click the up and down arrows, only when I click the numbers to manually enter a value.
I've tried xd simplon (my normal theme) and the buzz default theme.
if that image isn't working here's the link.
http://postimg.org/image/b2saz17dj/
It contains the error message.