Change username

I'm using the Forms Authentication with Reporting Services, and I have a
situation where i need to change a username for a user. The user already has
lots permissions to different reports, etc... When I change the username in
my UserAccounts DB and the ReportServer DB it logs in fine, but shows no
objects.
When I view the reports via an admin account, it shows the security still
lists the old username, before I changed it.
Any ideas on how to successfully change a username in reporting services?
Thanks,
-Jonathan
Please post this to the SQL Server Reporting Services newsgroup:
reportingsvcs
Chris Skorlinski
Microsoft SQL Server Support
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