If you use Butler (and why wouldn’t you? I use maybe two features of it, iTunes control and multiple pasteboard, but it has hundreds!) a Leopard fix is out. A bit about Butler:
Butler’s purpose is to make it easier for you to perform different — potentially recurring — tasks. Butler lets you arrange these tasks in its fully customizable configuration. There, you can assign one or more triggers to a task…
And now, the fix:
Butler 4.1.3 Transient
Requires ≥ Mac OS X 10.4
This is a transient release that will expire on January 1, 2008. If you need to run Butler on earlier Mac OS X versions, please click here.
Butler is compiled as a universal binary. This means that Butler runs natively on both Intel- and PowerPC-based Macs.