CUPS: Can't see any jobs

Hello,

I'm running 10.5.7 with all actual updates. The problem occures on my
client and on the Xserve.
Printing works at all, but I can't see any jobs via
http(s)://localhost:631/jobs/
http(s)://localhost:631/jobs?which_jobs=completed
http(s)://localhost:631/jobs?which_jobs=all

The error_log shows:

D [17/Jul/2009:13:40:05 +0200] cupsdAcceptClient: 35 from localhost:631 (IPv6)
D [17/Jul/2009:13:40:05 +0200] cupsdReadClient: 35 POST /jobs/ HTTP/1.1
D [17/Jul/2009:13:40:05 +0200] cupsdAuthorize: No authentication data provided.
D [17/Jul/2009:13:40:05 +0200] Get-Jobs ipp://localhost/jobs/
D [17/Jul/2009:13:40:05 +0200] Get-Jobs client-error-bad-request: No printer-uri in request!
D [17/Jul/2009:13:40:05 +0200] cupsdProcessIPPRequest: 35 status_code=400 (client-error-bad-request)

I can see the jobs via
http(s)://localhost:631/printers/printer.....

It seems to be a bug, or?

Regards.
P.