[RNBeavis]

I reinstalled to 1.2 last night (well, technically this morning!) and had similar issues. All fixed now thank god. We need more info to help you fix it - does it load but crash at say 60 per cent loading time, or does it simply fail to even open? You can't reinstall? Uninstall, delete, reboot and begin again...

5% and 60% crashes are well common, and you can bet that somebody elese has had the same problem; you can probably find an answer using search.