JJOS 1 Version 4.99 button glitch

So, I turn on my MPC 1000, and i press any of the pad bank buttons, they will often only select pad bank C. When I try to record a sequence, as soon as I hit any of the drum pads the recording will stop and whatever pad bank I'm on, it will jump to pad bank C. I recently changed some old buttons, the window, some cursor buttons, and the bar/step buttons. I can't tell if this is a glitch or a physical hardware phenomenon happening. I tried to upload the newest version of JJOS1 (the one I had was from 2009/10), as it was named JJOS 5.00. but, after successfull installation, it didn't change anything. Any ideas?

Hi,
Sounds like an hardware issue. You should open the MPC again and check all the cables, ribbons connections first.

Thanks le rat.
I figured out that there is hope- When i take the shell off of my mpc (the top casing), and test it, it works absolutely perfect. And then I put it back on- and the same issue persists. I've pretty much narrowed it down to this ribbon adjacent to the bottom right corner of the screen. It is getting just a tiny bit pinched, and this causes the tweak to happen. I haven't had time to take it apart since about a couple weeks ago, but any ideas as to how to not affect the ribbon or any similar accounts would be greatly appreciated. - D

Unplug then re-seat all those ribbons, can't hurt to try it.
Just be careful, don't take the connectors by the wires.
also, you can ignore the bottom (white with a blue end? I forget) flat-flex one, that's just for the pads.