It's weird how the 2.5 update still installs fine, switches the TI to update mode and everything.
It's not looking good, Access have suggested trying to install from a MAC but I have no access
to one.
I have been able to borrow a laptop with XP on it to try a different OS.
Failing that Access say to send it back to them or my dealer
I can't see it being a hardware problem though, what with it loading the 2.5 OS correctly and working fine in performances too.
My money is on it being a Vista problem.