Hi, Here's the error OnError,NEGOLAPPC,NT AUTHORITY\SYSTEM,ST Limited Stats,{40424D1F-8609-46B7-8B76-55A42C2CC4C9},{776FA897-A327-44FA-8CFD-02FB47309177},7/16/2012 10:19:30 PM,7/16/2012 10:19:30 PM,-1056964608,0x,Internal error: An unexpected error occurred (file 'pffilestore.cpp', line 3352, function 'PFFileStore::HandleDataPageFault'). OnError,NEGOLAPPC,NT AUTHORITY\SYSTEM,IncrementalOLAPUpdatePackage,{F423D795-224C-4060-91D4-39677031038B},{776FA897-A327-44FA-8CFD-02FB47309177},7/16/2012 10:19:30 PM,7/16/2012 10:19:30 PM,-1056964608,0x,Internal error: An unexpected error occurred (file 'pffilestore.cpp', line 3352, function 'PFFileStore::HandleDataPageFault'). OnError,NEGOLAPPC,NT AUTHORITY\SYSTEM,ST Limited Stats,{40424D1F-8609-46B7-8B76-55A42C2CC4C9},{776FA897-A327-44FA-8CFD-02FB47309177},7/16/2012 10:19:31 PM,7/16/2012 10:19:31 PM,-1055129598,0x,Server: The operation has been cancelled. OnTaskFailed,,,ST Limited Stats,,,7/16/2012 2:02:50 PM,7/16/2012 2:02:50 PM,0,0x,(null)

Which version of SQL are you using? Try installing the latest Service Pack. FIX: Error message when you run an MDX query in SQL Server 2005 Analysis Services: "An unexpected error occurred (file 'pffilestore.cpp', line 3267, function 'PFFileStore::HandleDataPageFault')"

I am using SQL Server 2005 with service pack 3... I saw the posted you're suggesting but the line # returning the issue is different (3267 vs 3352) so it looks like this is a different issue...

Install Microsoft SQL Server 2005 Service Pack 4. The error may go away. Also you may check the hotfix from my previous post.