Rollup 5 is now available for download. Here's the link.
Note that this is a cumulative update that includes Rollups 1, 2, 3, and 4. Some of the highlights on the fixes include
1. Improvements to load speeds of forms with a lot different types of fields
2. The Microsoft Dynamics CRM 4.0 client for Outlook does not load the toolbar
3. Microsoft Outlook crashes when you enable the "Track in CRM" feature for a delegate contact after you install Update Rollup 4 for Microsoft Dynamics CRM 4.0
4. Error message if the "OnChange()" event is enabled for a lookup field in a entity form and if this field is changed after a "Duplicates detected" message occurs in Microsoft Dynamics CRM 4.0: "Stack overflow at line: 0"
And more. For more information check the full details page here.
Dynamic Methods Inc.