big problem, compose new message,user to user

hi i have a problem with my site,when write to compose a message for send to another user no functions.

i haveinstall another soorse 7.0.3,  7.0.8

Hello

If you describe the problem in more details we'll try to help you.

Did you receive some PHP/JavaScript error messages?

thx for your help,sorry no error received,so i can tell you account ftp,and account in site for view u. sorry for my english

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; AskTbPTV/5.14.0.19709)
Timestamp: Sun, 15 Apr 2012 18:56:51 UTC

Message: Syntax error
Line: 140567385
Char: 1
Code: 0
URI: http://dare4love.com/mail.php?mode=compose

Message: 'tinyMCE' is undefined
Line: 1641
Char: 3
Code: 0
URI: http://dare4love.com/mail.php?mode=compose

Message: 'tinyMCE' is undefined
Line: 12878
Char: 4
Code: 0
URI: http://dare4love.com/gzip_loader.php?file=bx_templ_js_9123f9822919f2f947190c03d0982c74.js

Hello

OK. I'll check it and let you know. Please wait.

hi again,now work, so you resolved? wher is the problem?

We have this problem with only one user that we know of. What caused it? How do we fix it?
Here is the error he is getting

Still trying to figure this out. This member has created a new profile and still has the same trouble and errors. I am wondering if others are having trouble and just haven't said anything.
  Please help!

 Since this is affecting only one member it makes sense that it some setting on his computer. We have had him update Java, create a new profile,  and add our site to allowed in his antivirus.  We are not sure what else to try.

He signed in using a test account that does work and still can not send or reply to mail within the site.
I know it is something on his computer, but have no idea where to tell him to look.

Okay, Here is what we know, please jump in if you have any suggestions.

I have XP.
Anti virus is Norton.
Looks like the firewall is part of Norton.
Internet is Hughes.
The windows firewall is off.
Turned Norton off and still could not send a message.
Still getting an error message when the page loads

Just a suggestion, has your member tried different browsers?

e.g.  Chrome, Firefox, Safari..

 Yes, I had hin download firefox, still the same result.
I'm leaning to his ISP