task reminder on outlook 2007 not pop up

We works with exchange 2003 and office 2007 sp3 on windows 7 64 bit.

We notice that all the reminders that was create on task manager are'nt pop up on the remindier window.

I notice that when I configure the outlook profile with cache mode it work OK , all the reminder pop up,

when I turn it off again the reminder stop pop up.

Because we are working with terminal and roaming profile , the chach mode is off on all users.

I try already done the following option:

1] Click on File -> Options -> Advanced
In 'Reminders' section check to see if 'Show reminders' is checked.

[2] Start Outlook with '/cleanreminders' command
(Start -> Run -> outlook /cleanreminders)

[3] Start Outlook with '/cleanfreebusy' command
(Start -> Run -> outlook /cleanfreebusy)

[4] A corrupted reminder
Now you'll see why this may be the solution you will like if you have many of them :-(
Open Calendar, click on View -> Current View -> Recurring appointments.
Opened each one of them until you get the error "Recurrence data not found".
Delete this one and you should be all good to go.

Nothing HELP.