Xenie

Try to create a all new theme for the lights on your system including the mouse lights, if this doesn't work uninstall and reinstall the command center to check if there's any issue with the program itself.

Thanks for your reply. But both did not work. another solution?

Xenie, Alienware-Karen,

Do users need the Tactx software in addition to the Command Center?

* Read this:
http://www.alienwarearena.com/forums/topic/17597/hardware/tactx-mouse-software-help-/

* The 375mb file is here:
http://ftp.us.dell.com/input/R238599.zip

* Once installed, Start- All Programs- Alienware should show:
Alienware TactX Keyboard
Alienware TactX Mouse
Command Center

Did not work. Still can't change light color. İ have aw tactx keyb mouse cc in same folder. I first installed mouse driver than installed Latest CC  .( The CC in this package you provided  does not work for me)

Thanks for your reply. but i know that. That's not my problem . problem is when i click onto a color , color does not change 'apply' button is not being enabled either. I know how to change but it does not change :)

Hello there my name is lee and I think I can help you out. when you are in the alien fx you should see in the right top side a picture of a base unit and a mouse, click on the mouse and you will see a box in the middle which says view basic mode click on there and you should be able to change the colour from there...

Xenie,

Send me a PM with your service tag, phone number, and the link to this thread, I'll get back to you.

i cannot send you PM