Run SAP Lumira as Different User

Hi.

We have installed Lumira in Win 7 machine, When we tried to start Lumira as a different user (Users are having Two Different Windows AD Account) by giving"Run as a Different User', the Lumira just stuck and not opening up completly.

I can see two diffrent processes. in task manager.  First one is the default one.

C:\Program Files\SAP Lumira\Desktop\SAPLumira.exe

and the second one is

C:\Program Files\SAP Lumira\Desktop\cefframe\SAPLumira.exe

Both the process are not responding and CPU Utilization is  0 and  Memory utlization is constant.

Anyone faced such and issue or whats the solution for this?

Your help is much Appriciated.

thanks

Aby Sebastian.