Security Update 2008-008 for Mac OS X 10.4.11 broke ASM unfortunately. According to some reports ASM will permanently crash the Dock after installing the security update.

ASM 2.2.9 fixes the crashing issue by disabling dock menu support on Mac OS X 10.4.11.

This is the only workaround I could come up for now. My iMac and MacBook both run Leopard and it is not possible to install 10.4.x on these machines.