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
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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?
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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