For everyone who logs in today and finds out their custom UI no longer works here is the list of updated file for PoR release
copy these fron the default UI to your custom UI folder and that should fix the problem
gemicons01.tga (this file is not essential to update in Custom UI's)
EQUI.xml
EQUI_RaidOptionsWindow.xml
EQUI_AdvancedDisplayOptionsWnd.xml
EQUI_GuildManagementWnd.xml
dragitem34.tga
EQLSUI_CreditsWnd.xml
EQUI_AuraWnd.xml
EQUI_BlockedBuffWnd.xml
EQUI_BlockedPetBuffWnd.xml
EQUI_BankWnd.xml
EQUI_BigBankWnd.xml
There is an error in Bank and Bigbank windows that will prevent them from loading correctly you only need to fix 1 line in each file
XML Files are just normal text files so you can open them in any text editor, i suggest using notepad because some text editors will save extra info that EQ might not like
once you open the file use the replace feature under the edit menu
Replace
<DrawTemplate>WDT_Filigree</DrawTemplate>
with
<DrawTemplate>WDT_Rounded</DrawTemplate>
Tablets users skip the text in
BOLD .... just copy everything else from the NEW default into your tablets UI file do the bankwnd and bigbankwnd fixes like stated and it will work perfektly