one particular Information Space is locked

Hello,

I am on BI 4.1 SP1 on Win 2008R2.

I am getting an error when I trying to open one particular Information Space -

""You have been granted read only access because the Information Space is already being Accessd by: USERID" .

I had opened an extra window by mistake for this Info SPace and now I am not able to edit this Info Space again. I checked the lock table in the CMS DB also and it is empty.

Any trick about how to release this lock.

Please advice.

Thank you,

SC