Sessid has disappeared?

SQL Error I'm getting from one of my users when trying to submit a score:

There is a SQL error.
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Error Returned

mySQL query error: SELECT * FROM trill_games_session WHERE sessid= LIMIT 1

mySQL error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'LIMIT 1' at line 1
mySQL error code: 
Date: Friday 25th of May 2007 07:58:03 AM

This is from my IBProarcade 2.6.1, VB version 3.6.5 at http://www.trilliummud.com

It's like the session ID is gone or null. Only one user seems to be having the issue, any ideas on where I should look? Thanks for your help!

Oops, I see this error has been reported. If a mod can close this, that'd be great. I've yet to see the error myself, and only have 1 user reporting it.

[MrZeropage]

it would be of interest what this user has what other do not have, because this does not happen to everybody... I personally never had this problem, so it is somehow hard to fix

[trilljester]

I have a theory that it might be isolated to Internet Explorer users. I personally use Opera and Firefox and I've never had the issue. I've also asked other users on my site which browser they use and those who use Firefox or Opera are not complaining about this problem. The user that IS having the problem has not replied, but I'm going to guess that they have IE.

[MrZeropage]

can this user reproduce this error ?

Then it would be of very much interest for me to add some debug-code to your arcade and let him reproduce this missing sessid so that I can find out why this happens...