there's currently an issue with the Trial version of Live 9.0.2 which can cause Live to freeze on launch. We're looking into this and will provide a fix asap. For the time being, please revert to 9.0.1 in case you want to try out Live 9. We have disabled auto-updates for the Trial version for now, to prevent a 9.0.1 Trial from updating to 9.0.2 until the problem is fixed. Sorry for the inconvenience.
The direct download links for the 9.0.1 Trial are:Windows 64-bitWindows 32-bitMac OS X 64-bitMac OS X 32-bit