The information store could not be opened. The logon to the Microsoft Exchange server computer failed.
MAPI 1.0 ID no: 80040111-0286-00000000
ID no: C1050000 Exchange System Manager
A recently installed program may cause Microsoft Office or other e-mail-enabled programs to function improperly. Outlook can resolve this conflict without affecting the program that originally caused the problem. Do you want Outlook to resolve this problem?
Outlook was unable to resolve the conflict between a recently installed program and Microsoft Office or other e-mail-enabled programs. Outlook needs to modify a system component that another program is currently using. To fix this problem, please restart Windows.
İlgili KB: http://support.microsoft.com/kb/329136/en-us