Having just noticed that TT Pro has released a beta- 4.1.2b1, I called them to see if my current version 4.0.6 could be upgraded. I was told by Micromat that the version I have would NOT boot my iMac G5 running 10.4.6, and in fact might harm it if I ran any of the repair segments. I was told that if I paid $25 I could get an upgraded bootable disk running version 4.1 and then would be able to download the beta (by the way, the tech I spoke with had absolutely no idea that a beta had been issued).
I sent them the $25 (plus about $5 for shipping!) and should get the disk in a day or two.
I have always be bothered by the fact that MM do not specify which of their versions is fully compatible with a specific iteration of OS X, and even more bothered by the fact that Apple sent me a useless TT Deluxe disc when I first bought my iMac. I did get Apple to send me another , compatible version, but I suspect some people may have hosed their systems using the wrong disc.
Miriam
Rev A 20" iMac G5, 15"iMac G4, 15"iMac G3 DVD Mac OS X (10.4.6)