First off, refer to the Domino Offline Services (DOLS) Help documentation for detailed information on how DOLS with iNotes works and how to set it up.
Refer to Setting up Lotus Quickr for offline use for information on DOLS with Quickr

Technotes / Knowledge documents regarding known issues

Required Fixes

Title: Files for DOLS 7.0.4 plugin signature cannot be verified on Linux
Doc #: 4022723
URL: http://www.ibm.com/support/docview.wss?uid=swg24022723

Title: IBM Lotus Domino for z/Linux - Required DOLS Hotfix for v8.5 & v8.5.1
Doc #: 1417963
URL: http://www.ibm.com/support/docview.wss?uid=swg21417963

Title: DOLS: Revised n_DOLBASE.exe to replace existing version on Domino 7.0.2 Server
Doc #: 4013975
URL: http://www.ibm.com/support/docview.wss?uid=swg24013975

Quickr

Title: Error 'Empty password returned from external authorization library' when going offline
Doc #: 1265217
URL: http://www.ibm.com/support/docview.wss?uid=swg21265217

Title: Offline: Using login passwords does not work when single sign-on is enabled
Doc #: 7011910
URL: http://www.ibm.com/support/docview.wss?uid=swg27011910

Title: How to set up QuickPlace With LDAP and Domino Off-Line Services
Doc #: 1106447
URL: http://www.ibm.com/support/docview.wss?uid=swg21106447

Local Archiving

Title: Can multiple local archives be used in Domino Web Access?
Doc #: 1386048
URL: http://www.ibm.com/support/docview.wss?uid=swg21386048

Title: Error: "An error occurred trying to restore archived documents" when trying to restore archive
Doc #: 1378298
URL: http://www.ibm.com/support/docview.wss?uid=swg21378298

Title: 'Restore' from Archive menu options are missing in DWA Archive
Doc #: 1233167
URL: http://www.ibm.com/support/docview.wss?uid=swg21233167

Title: Error: 'The page cannot be found' when accessing mail archive through browser in Domino Web Access
Doc #: 1304274
URL: http://www.ibm.com/support/docview.wss?uid=swg21304274

Passwords / Authentication

Title: How to synchronize online and offline password for DOLS
Doc #: 1289170
URL: http://www.ibm.com/support/docview.wss?uid=swg21289170

Title: Password Security and Domino Off-Line Services (DOLS)
Doc #: 7003798
URL: http://www.ibm.com/support/docview.wss?uid=swg27003798

Title: Authentication and tunneling with a Forward Proxy or Reverse Proxy with DOLS
Doc #: 1255059
URL: http://www.ibm.com/support/docview.wss?uid=swg21255059

Title: Can short name be used to authenticate with Domino Web Access and Domino Off-line Services?
Doc #: 1215347
URL: http://www.ibm.com/support/docview.wss?uid=swg21215347

Synchronization

Title: Initial synchronization fails while installing offline subscription for a database
Doc #: 1195125
URL: http://www.ibm.com/support/docview.wss?uid=swg21195125

Title: DOLS: Changing the mail file directory on server causes synchronization to fail
Doc #: 1314527
URL: http://www.ibm.com/support/docview.wss?uid=swg21314527

Title: DOLS error 'Idle: Array subscript is out of range'
Doc #: 1304160
URL: http://www.ibm.com/support/docview.wss?uid=swg21304160

Title: DOLS synchronization stops at 5% and 'File not found' error occurs
Doc #: 1236454
URL: http://www.ibm.com/support/docview.wss?uid=swg21236454

Sync Manager Installation

Title: Continually prompted for the Domino Off-Line Services (DOLS) install directory
Doc #: 1264198
URL: http://www.ibm.com/support/docview.wss?uid=swg21264198

Title: Error message when initially installing DOLS
Doc #: 1416877
URL: http://www.ibm.com/support/docview.wss?uid=swg21416877

Working with Local Mail

Title: iNotes sort order is incorrect when running offline with Side Preview and IM enabled
Doc #: 1404591
URL: http://www.ibm.com/support/docview.wss?uid=swg21404591

Title: Cannot Update User Preferences when Working in Off-line Mode (DOLS)
Doc #: 1207135
URL: http://www.ibm.com/support/docview.wss?uid=swg21207135

Title: Cannot see local directory catalog when using Domino Web Access offline
Doc #: 1259462
URL: http://www.ibm.com/support/docview.wss?uid=swg21259462

Miscellaneous

Title: Enhancement request for option to keep copies of local archives after DOLS uninstall
Doc #: 1252978
URL: http://www.ibm.com/support/docview.wss?uid=swg21252978

Title: DOLS does not work offline when OrgName ends with a period; "Internet Explorer cannot display webpage."
Doc #: 1288408
URL: http://www.ibm.com/support/docview.wss?uid=swg21288408

Title: Resolving common issues associated with using agents in Domino Off-Line Services subscriptions
Doc #: 1306798
URL: http://www.ibm.com/support/docview.wss?uid=swg21306798

Title: 'Go Offline' option does not display as expected in Domino Web Access
Doc #: 1173330
URL: http://www.ibm.com/support/docview.wss?uid=swg21173330

Title: Download re-signed Java applets for Lotus Domino (May 18, 2009)
Doc #: 4022981
URL: http://www.ibm.com/support/docview.wss?uid=swg24022981

Title: Deleting and recreating a DOLS Configuration Profile Document
Doc #: 1381667
URL: http://www.ibm.com/support/docview.wss?uid=swg21381667