This is a Chimera problem, not a ChimeraX problem.  One solution would be to install ChimeraX instead of Chimera.  For Chimera, the most common solution is to update your graphics driver.     HTH,     Greg On 1/21/2023 8:36 PM, Ashfaque Rahman via ChimeraX-users wrote:

Why is this error showing? What is the solution?

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