EyeFi Mobile X2 will not connect to Wifi

So new EyeFi card will not connect to my router with the error message "waiting for a network address", after some investigation the logfile shows this:

eyefi AssocResp: Error status 0x0002, aid: ffff, error/cap: 0xfffc (Auth response timeout)

Which according to this site http://forums.eye.fi/viewtopic.php?f=2&t=3347 can indicate a faulty card reader, I plugged the reader directly into my USB port and hey-presto. Everything worked.

Logitech G500 mouse pointer jitter fix.

Logitech G500 Mouse jitter fix

So I brought a second hand Logitech G500 mouse which had some problems with jitter, when stopping the mouse quickly movement the pointer would briefly jitter a few pixels randomly.

After some googleing I found this blog entry - http://blog.ambor.com/2011/04/logitech-g500-mouse-rattle-jerky.html - which pointed me in the direction of the laser lens. Fixing the lens in place fixed the problem, the but as the original article has quite short on images I thought I would document it here. 

The top of the laser sensor, the lens is held in place by the two transparent tabs - which you can see passing through the black sensor at in the middle of the PCB.

The lens itself, this was unstable on my mouse and as the mouse moved/stopped the lens wiggled around disrupting the view of the laser.

 The laser sensor with blobs of glue fixing the lens's plastic tabs onto the sensor itself.

Job done!