Sorry, I can't reproduce your problem. It only takes 7 hits of the capslock for me. I never heard of anyone claiming that happening before. weird.
I am using doublecommand version 1.6.5 with OS X 10.4.11 on a Macbook.
Are you using the beta version 1.6.6 ?
Are you using Leopard ?
did you see this ?
new Built-In Keyboard Firmware Update - please disable DoubleCommand before applying this update, you can safely add DoubleCommand back afterwards.
or this ?
My advice is to disable DoubleCommand before upgrading to avoid upgrade problems, then enable when you've got everything else sorted out.
Bad news is the developing seems to be messing with the capslock-backspace option in version 1.6.6b
I noticed the snapshot of the preference pane does not show that option on the home page ? Is anyone using the beta ? It that true or is that an old picture ?