problem with add-on and change domain

[sliver]

I owned a domain:yixixi.com,and I pointed the nameservers to ns1.x10hosting.com and ns2.x10hosting.com,then I set this domain in my account management panel.
System returned back success info,and the domain showed in panel seemed all right.
BUT,after several hours I login to the account panel again,my domain turned back to original,just liked I haven't change it at all...I tried this many many times,but still not work.

Even when I tried to change domain to flashgames.x10hosting.com,the same error occur.
What'wrong?I really need help...thanks

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my account detail below
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Account Username:sliver
Primary Domain:http://flashgames.pcriot.com
cPanel URL:http://flashgames.pcriot.com:2082
Hosting Type:Ad-Enhanced
Advertisements:Required - Text Link
Disk-Space Allotment:1000 MB
Bandwidth Allotment:20000 MB
Features:cPanel 11+, MySQL, PHP 5+, CGI, FTP
PHP VersionHP 5.2.5 - Intermediate Ver
Server NameVox.x10
IP Address67.228.161.43

 

[Corey]

I changed your root domain to yixixi.com

 

[sliver]

Corey,thanks for your help.
Now I can access my cpanel yixixi.com:2082
but still can't open my site yixixi.com
I tried to add a subdomain game.yixixi.com and pointed it to the root dir,it works, but most files in my site not work properly,would you take a look at this?

 

[Corey]

You have an issue with your .htaccess file. Try backing it up then removing it.

-Corey

 

[sliver]

I removed .htaccess file,and it's Okey now.
Really appreciate your service!

 

[Fedlerner]

Feel free to re-open this thread if you need further assistance.