BlueNovember

Hey all, I'm having problems running Components and Tweaks on the pre-SP1'd Vista Ultimate x64 iso. (I am doing the "two step" thing referred to in previous posts.) The iso installs fine by itself, but if I remove things in Components/Tweaks I get the following error at the start of the install process; Then installation terminates and the pc restarts. Only things related to languages I've removed are a number of foreign languages under Components\Languages. The regional information under Unattended is all set to English UK/US. The original DVD iso has hotfixes installed as far as early September, but no components/tweaks. There seems to be a lack of consensus; some posts say tweaking is possible, others not. Any help people can provide would be appreciated.