Outlook Error – “A dialog box is open. Close it and try again.”
Introduction :
Encounter a weird problem after switching to a Vista machine, the Outlook after setting up unresponsive and the reminder comes but I was unable to dismiss it nor create new emails.
Enviroment : Microsoft Windows Vista?
Installation / Usage :
After trying out 2 solution, I found that the problem was actually the Name and Intial dialog box which were causing the problem. It didn’t display properly, so you would not able to create any other emails.
To fix it I create 2 entries under the Outlook registry.
HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\OFFICE\COMMON\USERINFO
New String Value – UserInitials YN
New String Value – UserName YourName
References :
Office Outlook Forum

I'm Loy and welcome to my blog. I'm an IT engineer which spend a lot time tinkering with technology, while away from work I enjoy capturing the moments and enjoying God's greatest gift - Appetite. Hope you find the information here useful or entertaining. Feel free to feedback about my blogs or give a shoutout.