There are also some other functionalities e.g. ‘online help’ effected by that issue.
To find out what patchlevel your GUI is running just click on the SAP GUI icon and open ‘ properties ‘. For our ABAP Trial Version community we provide a patch that can be downloaded from SDN. This patch is an exe-file that has to be executed on the machine your SAP GUI for Windows 6.40 is installed. After running this file the patchlevel of SAP GUI will be 23.