Goo, I wouldn't do a thing in ROM Manager. The wipe may not be complete. Get a zip called Android Revolution Super Wipe and put it on your phone's memory, along with the ROM and gapps PROPER (7/4).
Here's my procedure for flashing Jelly Belly:
Make a nandroid of ICS, and then copy EVERYTHING YOU OWN to the PC as a backup... including your backups!
Boot into ClockworkMod from power-down.
Flash Super Wipe
Flash
Jelly Belly 2.2
Flash gapps (
the 7-4-2012 PROPER version)
Reboot.
Set up Android and stabilize the system.
If you want add-ons ( and you do ):
Power down the phone.
Boot into ClockworkMod from power-down.
Wipe cache and Dalvik
Flash 1% Circle Battery Mod
Flash Power Menu Reboot Mod
WIPE DALVIK CACHE AGAIN AFTER FLASHING!
Reboot.
Enjoy.
If you want any OTHER Mods, flash them in another CWM session. You don't want to flash them all at once.
EDITS are in bold. Sorry