Finally got around to updating to Ir5 last night - Superwipe, flash through Clockwork/ROM Manager, fastbooted the boot.img, all groovy.
Only one slight problem - the People app isn't picking up any contact info or pictures from Facebook.
Facebook app works fine. Friendstream picks up everything as it should. HTC Sense has been authorised by the FB app. I can share photos etc. through the 'Facebook for HTC Sense' option - all works fine, except the People app which isn't even picking up Facebook contacts as an option.
The one thing I haven't done is check to find out if Facebook have altered the security permissions without notification AGAIN... failing that, any ideas?
*** EDIT ***
Ok - in 'even weirder news':
I tried to restore a previous version (Ir2) from a ClockworkMod backup, because I couldn't remember if a restore also reflashes the boot.img (it doesn't).
The phone bootlooped a few times, and I realised that the boot.img wasn't the right version. Ho-hum.
Tried to do a restore to the version of Ir5 that I already had installed, which failed due to an MD5 checksum mismatch of all things.
At this point, I figured I'd just reinstall from the basic ROM, but didn't do a SuperWipe this time, although i did clear out the Dalvik cache before I started,
Rebooted, Android did the upgrade and optimisation thing, and is now working perfectly, with People-to-Facebook links intact. Bonzer.
Still doesn't explain why it wasn't working following the clean install the first time though.
Paul - don't know if you're still monitoring this thread, but if you are and want/need more info, let me know.
Edited by carthesis, 20 November 2012 - 10:34 AM.