Do you receive any error message on screen ?

Do you see errors in the eventlog of the Exchange Client Access server ?

Is is working fine on the normal OWA version ?

No Error Message its displaying when i try to save the attachment it save some garbage file.

Plz Find the attach screen shot of error im getting.

Did you install the OWA extensions ?

BTW: Are you running Exchange 2010 with SP1 ?

well i have resolve this issue by excluding the all exchange ips from IIS on Enterprise Vault bt nw the prb is that every day i have to restart the service of Enterprise Vault Admin to work.

once i restart the services it wrk for the whole day bt whn i came in morning and login on OWA it again show the banner over there.

Regards
Saqib Alam

hmm that seems strange.. can you explain step by step what you did... and what you did to "correct" it?

Does "premium" OWA correctly, and the problem is just with lite?

Remember that IIS will shutdown inactive processes, so, when you try to login in the morning it could be that IIS is taking some time to start those processes again ...  maybe a little too long and things are timing out.  What happens if you try, does it fail?  And then if you close your browser and try again, what happens then?

@ Rob

I exclude all my Exchange CAS Server , mailbox , NLB IP from EV server IIS Directory Security

once i did that and restart the EV admin service it wrking fine. before tht  it was not working and i get the error for which i alreay put the snapshot above.

now its wrking bt as i mention above  i hve to restart the service every day in morning.

in Event Viewer i got this.

Event ID: 3411

An error has been reported by ConfigureMsgService. It may be due to a problem contacting a Global Catalogue Server.

Exchange Server: EX-ITU01-001

Mailbox: SMTP:sys_mbox@kacst.edu.sa

Error: 0x8007000e

For more information, see Help and Support Center at

Event ID: 8591

Event Type: Error
Event Source: Enterprise Vault
Event Category: Directory Service
Event ID: 8591
Date:  1/4/2011
Time:  7:49:30 AM
User:  N/A
Computer: EV-IT001-002
Description:
Error launching EvAzUtil utility in order to upgrade the roles-based administration database. Error code: '7'

For more information, see Help and Support Center at http://evevent.symantec.com/rosetta/showevent.asp

Event ID: 2216

Event Type: Warning
Event Source: Enterprise Vault
Event Category: Archive Task
Event ID: 2216
Date:  1/4/2011
Time:  7:40:14 AM
User:  N/A
Computer: EV-IT001-002
Description:
Message dispenser will suspend processing for 10 minutes due to a recoverable error

Task: Exchange Mailbox Archiving Task for EX-ITU01-001

For more information, see Help and Support Center at http://evevent.symantec.com/rosetta/showevent.asp

Regards

Saqib Alam

For the Event ID 3411 you need to download the latest Outlook 2007 update as per https://www-secure.symantec.com/connect/blogs/outlook-2007-update-resolve-issues-ev-server.

There is a thread on the forum where you can provide feedback on experience after applying this patch.

https://www-secure.symantec.com/connect/forums/outlook-sp2-hf-article-2458611

This should remove the need to restart the services/tasks each day.

Regards

Karl