Trouble with Filco mjstch 2

[Lemorveux]

Hi,
i have a weird problem with my filco majestouch 2. I shocked it with static electricity a week back, i stood up from the couch, tap the space bar to pause vlc and the shock shut down the keyboard, after 2-3 sec it re-opened. Since, when i press the left shift key it automatically shuts down the computer with standard windows shut down button. The right shift types in''<1asdfjKL:>'' and minimize and resize opened windows but not fullscreen program. I couldnt find any other key affected by a weird behavior but the 2 shift keys.

I tried usb and ps/2 plug, re installing it twice in device manager and tried it on another computer, nothing change. 

So, is there something to do to repair or to fix this. Do i need to change part?

I couldn't find any similar problem with a driver less keyboard.

Thank you for your responce.
666chaos555