410795 - Created tasks will not be displayed mybe vanish completly

Status: VERIFIED DUPLICATE of bug 493389

(Calendar :: Provider: GData, defect)

Description

[Dirk Fleischer]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; de; rv:1.8.1) Gecko/20061010 Firefox/2.0
Build Identifier: Thunderbird Version 2.0.0.9 (20071031); Lightning 0.7; Provider for GoogleCalender 0.3.1

I use Thunderbird and Lightning in combination with GoogleCalender (three calenders in the same account). The event sync works fine. But as soon as I try to create tasks the window for a new task is cloesed the display frame stays empty. I tryed to create tasks with or without starting date, with progress or without.
Restarting Thunderbird does not change the problem, the created tasks seam to vanish completly.
I unchecked the different calenders till only one was active(nothing)
I created tasks for today (nothing)
I created tasks for tomorrow (nothing)

Reproducible: Always

Steps to Reproduce:
1. double click in the tasks display (e-mail view)
2. fill in the form
3. Hit 'Save and close' 
4. Nothing can be seen in the task display 
Actual Results:  
Can't use the task feature

Expected Results:  
I want to use the task feature

Comment 1

[Stefan Sitter [:ssitter]]

I'd suggest to read the extensions list of known issues and open topics:
<http://wiki.mozilla.org/Calendar:GDATA_Provider#Why_can.27t_I_create_tasks_on_a_Google_Calendar.3F>