Mass Effect 2: X axis blocked while scanning

Hey everyone. I recently had some troubles with my game. When I try to scan planets, I can only do it vertically. For some reason, the X axis is blocked and even the "cross-hair" appears in a "flat" way, like it's a bi-dimensional scan.
Anyway, I don't know if any of you encountered this problem and, if you did, perhaps you found a solution.
Thanks in advance.

Mass Effect 2: X axis blocked while scanning