486987 - Can't address mail to any but the first email address field

Status: RESOLVED DUPLICATE of bug 486842

(Thunderbird :: Message Compose Window, defect)

Description

[Bob Riley]

User-Agent:       Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; Avant Browser; .NET CLR 1.1.4322; OfficeLiveConnector.1.3; OfficeLivePatch.1.3; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MSN Optimized;US)
Build Identifier: Shredder/3.0b3pre

Today, for the first time (after one or two updates), I can only enter a TO: address to the first line of an outgoing mail.  I can change it to TO: or CC: or BCC:, but I can only enter one address.  When I hit <enter" after entering the first email address entered, nothing happens; I cannot even click on the subsequent addressing lines to insert the second, third, etc. email address.

Reproducible: Always

Steps to Reproduce:
1.Click on "compose mail" icon; the mail composition window pops up.
2.I enter the address on the first line; autocomplete works fine.  So do group entries.
3. I cannot enter any more addresses.
Actual Results:  
See step 3. above.

Expected Results:  
I am unable to add email addresses on the second, third, lines.

Allowed me to add CC:, BCC:, etc., or TO: email addresses after the first email address line.