Outlook 2007 slow to create an new Email

I have 3 users with Outlook 2007 SP3 and using Google Apps for Business email.  When they click on new to create an new Email the PC freezes for 40 seconds. Eventually Outlook responds and allows them to enter an email address and send the email.

I have disabled all add-ins in the Trust Centre and disabled their AVG anti-virus Software but that doesn't make any difference.

If I start Outlook in safe mode ( outlook.exe /safe) they do not have the problem.

Can anyone advise?
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you can try to rename the file FRMCACHE.DAT which is located in C:\Users\%username%\AppData\Local\Microsoft\FORMS (on Windows 7)
C:\Windows\profiles\%username%\Local Settings\Application Data\Microsoft\FORMS (on XP)

Forms like "new email", "new appointment" etc. are cached in this file. In case you are experiencing any kind or problem with a form you can simply close outlook and rename the frmcache.dat file. It will be re-created as soon as you restart outlook and create a new email again.

As it is working when you run Outlook in safe mode - have you checked that all add-ins are still disabled after restarting Outlook? Some add-ins require local admin privileges in order to be permanently enabled or disabled.

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