Mail not working within website !!

I discovered that a template change caused my mail to between users at my site to  stop working.

I have changed my site back to tmpl_uni and the mail between users is still failing to work

Please can you help me fix this !!

I have dolphin 7.0.5   :)

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SU 3.28; GTB6.6; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; .NET CLR 1.1.4322; .NET4.0C; .NET CLR 3.0.30729)
Timestamp: Sat, 26 Feb 2011 00:58:10 UTC

Message: Object doesn't support this property or method
Line: 2175
Char: 3
Code: 0
URI: http://socialmunch.com/mail.php?mode=compose&recipient_id=40

Message: 'tinyMCE' is undefined
Line: 13537
Char: 4
Code: 0
URI: http://socialmunch.com/gzip_loader.php?file=bx_templ_js_2e7ac5fdf8a6f087c9e49525c78838ba.js

Message: 'tinyMCE' is undefined
Line: 13537
Char: 4
Code: 0
URI: http://socialmunch.com/gzip_loader.php?file=bx_templ_js_2e7ac5fdf8a6f087c9e49525c78838ba.js

Make a ticket on our support page please