Patch 1.04. Steam and DRM-free releases are already patched.
The September 2011 patch released on Steam was made available separately by user Voodooman. DRM-free releases are also already patched.
Preferred refresh rate
The smart (automatic) camera stays on, even if you disable it in the game options or through the game's configuration files.
When using widescreen resolutions, occasionally the 'thermometer' bar for pyrokinesis will be displayed at the outer-edge of the screen rather than near the targeted object/creature. There are no known fixes to this bug.
Mouse movement in this game feels entirely different from Windows (no zigzags, smoother; Likely no mouse acceleration).
Right-click your desktop, click "AMD Radeon Settings," and under the Gaming tab, find or create Psychonauts' profile. Change the anti-aliasing method of Psychonauts to "Adaptive Multisampling" and apply.
Run the game in compatibility mode for Windows 95. If the game still crashes then run the game in compatibility mode for Windows 98/ME instead.
The GOG.com and Humble Store releases of the game incorrectly include saved profiles used by a developer from Double Fine. The profiles also reconfigure the gamepad control scheme even if you don't use them, so to restore the default control scheme it is necessary to delete them.
If presented with the following error message, you may have a corrupted/damaged game profile:
Error (null), line -1
If you have VS.NET installed, you can try to attach the debugger
Otherwise, click OK
To fix the error message and allow the game to load:
To possibly recover the save game:
Error: "The game was unable to find a 32bpp display mode supported by your system in which to run. Your video card and monitor must minimally support 640x480x32bpp."
Run the game in Windows 95 compatibility mode.