Since BioShock was released, several issues have been found, with most uncovered in the Windows version.[150] A list of known issues is maintained on the official forums.[151] In both the BioShock demo and release version, it was observed that the field of view (FOV) used in widescreen was set such that it appeared that there was less visible in the display compared to the 4:3 format,[152] as well as in effect zooming in the player's view resulting in some cases of disorientation and nausea (particularly for people playing close to the screen, as with most PC setups), conflicting with original reports from a developer on how widescreen would have been handled.[153] This was a design decision made during development.[154][155] In patch 1.1, released on December 4, 2007, the "Horizontal FOV Lock" option was added to the Options menu,[156] which when switched off allows widescreen users a wider field of view, without cutting anything off the image vertically.