Glad it isn't me then. I posted earlier that I couldn't install 4.0.3 into SL - got the message I need to be running 10.5.8. This one was my next issue 🙄 Seems there are a few kinks that need ironing out on my computer.
For what it's worth, I did an upgrade install - I'm wondering whether to go for a fresh OS install instead. it is probably a bad idea bug hunting <and> running 3rd party bit and bobs...
On the whole though, I am generally very much enjoying SL - much more responsive and smooth OS, where window populate in a flash, and scrolling rarely stutters. There are wee bugs/incompatabilities, but the plastic wrap is barely off, and there are no show stoppers for me. It is nice to use a more spring cleaned OS: 90% re-write is a lot of work....