ICA 7.0 Client in Windows CE Keyboard Problem

[Arun]

I am using Metaframe 1.8 at the server end and
ICA 7.00.1101 with windows CE .NET 4.2 based client.

When the client is connected to the server through ICA.
After Logging in, Just for a few moment do this action,

Action : Press numlock key, capslock key alternatively and quickly for
few seconds.

Result (Problem) : As a result, the respective LEDs of the keys
getting BLINKED and the response thereafter becomes very slow and
sometimes may not.
Also, it stops blinking only after some Minutes which troubles the
user.

Kindly, share the suggestions if you had with you,

Yours friendly,
Arun.