Hi.

I've noticed some odd behaviour with 10.4.1. I have Safari and Mail open
and after a period of time of surfing, checking my email, I go to
minimise Safari, for example, and neither the orange button or double
clicking the title bar allow me to minimise. This is then also the case
with Mail. 

I can fix this by quitting both applications and opening them again and
all is fine for a while.

Is this just me?

Michael