having trouble removing me gtx 660 from old pc

[terminator123]

hi basically i want to install my gtx 660 (in my old computer) into my new one which i am using now
i have pressed in the white clip, 1 side of the graphics card prompts up but the side where (the graphics card is poking out the back of the case > the tray bit where you plug in vga or hdmi cable) i cannot get out

im shaking it and juddering it out but im scared incase i break it!
it just wont move! the white clip is fully pushed in

can someone help me please

 

[unknownofprob]

Unscrew all bolts holding rear bracket in place, push slot clip right back, pull card out slowly but with a but of force. Done.

 

[terminator123]

Unscrew all bolts holding rear bracket in place, push slot clip right back, pull card out slowly but with a but of force. Done.

only problem my case is old and does not have any screws on the back. its a zoostorm case.
no screws holding it in place

 

[unknownofprob]

If it's not connected by bolts and the clip is released, it should come right out of the slot with consistent but steady force.

 

[terminator123]

If it's not connected by bolts and the clip is released, it should come right out of the slot with consistent but steady force.

hm okay well ill try again but yes there are no screws or anything, its just been smacked into the slot, which this technician had to use pliers to remove the metal bendy things