SAPGUI 7.20 terminated when copy and paste value in planning book.

Hello Experts,

I have window 7 and SAPGUI 7.20 patch level 2. Recently, I encountered an issue where my SAPGUI terminated unexpectly when I use CtrlC and CtrlV of a value from one cell to another in any planning books (DP, SNP, ect.)

A window pop-up with a message "SAP Logon for Wndows has stopped working" , "A problem caused the program to stop working correctly. Please close the program.". The only option to select is "Close the program" and after I selected it, it terminates all of my open SAP option. It happens everytime I use the CtrlC and CtrlV of a value from one cell to another.

Do you know what caused this and how I can correct the issue? Appreciate in advance for your hel