Oracle 10G Express Edition backup issues

After a backup job is run on our Oralce 10g Express Edition Server our system users can't access their web login page -
http://127.0.0.1:8080/apex - To access their databse.
What i need to know is this.
I do a daily backup of the Oracle DB manually, the one that comes with express edition, but when the backup is comple users can't access the afforementioned web address as i have stated
1 - Does anyone know what can be causing this?
2 - When i backup the database manually where does the database actually backup to?
3 - I was thinking of backing up the Oralce DB manually usning XE's own backup then running Symatec backup Software to backup this file.In the event of a system crash i could then simply restore the operating system (windows 2003), reinstall XE and import the file i had backedup with XE . Does this sound like a good solution

No idea why users cant access the login page, maybe trying to post on XE forum Oracle Database Express Edition (XE) may help for this.
But you may use Rman with XE, it is a best practice for Oracle B&R and it is easy to control the backup destination with Rman - http://download.oracle.com/docs/cd/B25329_01/doc/admin.102/b25107/backrest.htm#sthref414
Also these demos may help - http://psoug.org/reference/rman_demos.html
Best regards.

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