TS2 and CS (Mouse lock)

I have a problem with the TS2 and CS. The problem is that i can't walk (use keyboard) and mouse at the same time when I have TS2 client running. It locks the mouse movement. (Mouse works perfectly until a key is pressed on the keyboard) Does anyone else have the same problem?

(I dont even try to use TS2 client when mouse locks)

Using
OS: w2k sp3
Keyboard: MS Natrual Pro on USB
Mouse: MS IntelliPoint 3 on USB