i use internet explorer and when i want to ask a question in an ask box, i get this error and the my question is not submitted

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; GTB6.6; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; AskTB5.6)
Timestamp: Mon, 8 Nov 2010 08:49:51 UTC

Message: Object expected
Line: 46
Char: 25
Code: 0
URI: tumblr.com/ask_form/jerybeanxo.tumblr.com