loose case after RAM upgrade?

Just wanted to see if other have experienced any similar issues with the case being loose after opening for stuff like a RAM upgrade.

I opened up mine last night, inserted an extra stick of RAM, now the case area just to the right of the right mouse button dips slightly when i push it.
Its barely even moving a mm but i can feel it move,

I was careful when i opened the laptop up, I work in IT so I have experience in this area, and I have double checked the clips and they seem fine.
the area which moves is exactly where I would rest my right palm on it to type so its really annoying me now.

any ideas anyone?

 

i have the same problem, i think the clip is broken somehow

 

I have found that I need to push each side outwards fm the centre, the slips are more sideways locking rather than vertical.
Then I hear it click that little bit more into place
Rory

 

I had this too.
You have to disassemble the unit again and put it together carefully. Before putting in the screws everything should be perfectly in place.
After that the problem was gone