Launching mission control with double tap problem

It worked after i installed Lion, but now it won't launch with the 2 finger double tap. i have restarted my iMac and checked mouse properties to make sure it is ticked, but it just won't work. any ideas guys?

do you not have to use three fingers and swipe upwards.

on a track pad yes but I'm using a magic mouse, like i said it did work, but can't get it to work anymore

have you tried un-ticking the option and then restart the machine, and then re-tick it and start it back up and see if that works.

Domb said:

have you tried un-ticking the option and then restart the machine, and then re-tick it and start it back up and see if that works.

Click to expand...

Tried this but still no change. really annoying

Just incase this hadn't been sorted, I've just found that you only double tap the surface of the mouse with two fingers and don't actually click the mouse when doing it and mission control appears.

Hope this helps!

thanks...

...I was also double clicking - doh