Incredimail annoying message "This operation could not be performed because messages are still being synced"

Question: 

How do I get rid of the annoying message "This operation could not be performed because messages are still being synced." I am using 2.5 version of Incredimail so can I return back to previous version 2.0?

How to stop synced?

Answer:-

To get rid of the annoying message "This operation could not be performed because messages are still being synced.Please note that we do not recommend downgrading from IncrediMail 2.5 to IncrediMail 2 since it will cause the loss or corruption of your data.

The issue you are dealing with may be caused by incorrect account details. I would like you to reconfigure your email using the 'Email Setup Wizard':

1. Firstly refresh your IncrediMail installation by clicking the following link :

http://www.incredimail.com/beta/?is=t

2. Click 'Tools' and then select 'Email Accounts'.

3. Chose your account, click 'Remove'. And for reconfigure the account, click 'Add'.

4. In the Account Wizard window, choose 'Let me configure settings myself', and click 'Next'.

Please Note – If you do not have another email client installed on your computer, you will not see the 'Let me configure…' option. Continue to Step 5.

5. Please choose your email service provider. If it is not listed, click 'Other'.

6. Follow the instructions to setup your account.

Make sure that the password that you have entered is identical to the one your email account provider has given you.