W510 - screen shift

[lyncs]

Hi to every ThinkPad user at this forum!

I have a strange issue which I faced first time in my long relationship with TP - when I tried to clean w510`s display with cleaning tissue at horizontal position, I was able to move screen inside bezel with force applied to tissue at horizontal direction too about a millimeter in up-down direction(when it imagined at the normal position), so screen is not fixed properly as it needs to be as I think. Is it normal or I need to disassemble screen area and fix this problem? By the way, this notebook is a first thinkpad which I`ve bought used and not in the store.