SAP Enterprise Portal with IE10 - log off does not work

Hi experts,

I've just updated my IE to IE10 and the log off feature does not work anymore on the SAP EP. We currently have SAP EP 7 with ESS / MSS using EHP5.

I also noticed that the log off link is now interpreted by IE10 by an anchor (example https://portalserver:portalport/irj/portal# )

See printscreen:

I have also applied the recommended settings for tab management in IE by SAP notes

All the other features and applications (either WD ABAP or JAVA) are perfectly working.

Do you have any hints?

Thanks.

Best Regards,
AS