Unhandled exception at 0x0044df68 in ParallelsToolsCenter.exe: 0xC00000FD: Stack overflow. I don't know if this is helpful data, but attached is some debug output as parallels tools just crashed on me. The error happened immediately after I closed iTunes (within in the virtual machine) and then unchecked my iPhone in the Devices->USB menu. I'm running Leopard 10.5.3 on a MacBook Pro and the guest is Vista SP1.
Please create ticket in support we can investigate problem more closely Just make sure you are running 5660 downloaded after 22nd of May