CAP's Lock

Environment:
Application: Windows application
Operating System: Windows Vista

Requirement:
If agent selects the option save the user name /password ,from next login onwards application should not ask username/password.

1 .Launch the application
2. Save the option user name/password once you logged in with
3.Close the application and launch it again by clicking the short cut .

Actual Result:
Some times application is not doing automation.

As testing team haven't provided exact repro steps and moreover it happened in my machine only ,dev team set the priority as low.

I defiantly know ,there is some issue but I could not figure it out for long time why it's happening some times that to in my machine. That time I had changed my password as per the password policy ,mostly I will keep at least two letters in CAPs. Whenever I am entering my password I will on the CAP's lock, after login I will off the CAP's lock. That time I got the exact repro steps why this issue happening some times

Here are the repro steps

1 .Launch the application
2. Save the option user name/password once you logged in with
3.On the CAP's lock.
4.Close the application and launch it again by clicking the short cut .

Actual Result:
Application is not doing automation.

Reason: When ever we switch on the CAP's lock Operating system will display a message 'CAP's lock is on..' because of this the focus is not moving to the password field.