Forgive my lack of knowledge.
I had this computer put together by a friend who is no longer available for tech support.
Using Adobe creative suite, specifically Photoshop... the program glitches when you attempt to create a new document.
(interface screen with the create document window just flashes at a high frequency and does no allow you to specify a new document size) - however you can open up existing documents without issue.
*Adobe support says to make sure your graphics processor is compatible and has the latest driver.
This is where I am lost, but here is current specification information from Photoshop/Help/Get info:
Adobe Photoshop Version: 21.0.3 20200115.r.91 2020/01/15: 21f283574f6 x64 Number of Launches: 9 Operating System: Mac OS 10.14.6 System architecture: Intel CPU Family:6, Model:12, Stepping:2 with MMX, SSE Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2, HyperThreading Physical processor count: 12 Logical processor count: 24 Processor speed: 3460 MHz Built-in memory: 131072 MB Free memory: 91110 MB Memory available to Photoshop: 125994 MB Memory used by Photoshop: 73 % ACP.local Status: - SDK Version: 1.24.4 - Core Sync Status: Reachable and compatible - Core Sync Running: 4.6.0.12 - Min Core Sync Required: 4.3.4.2 ACPL Cache Config: Unavailable Alias Layers: Disabled. Modifier Palette: Disabled. Highbeam: Enabled. Touch Bar Property Feedback: Enabled. Image tile size: 1024K Image cache levels: 4 Font Preview: Medium TextComposer: Latin Display: 1 Main Display Display Bounds: top=0, left=0, bottom=1890, right=3360 OpenGL Drawing: Enabled. OpenGL Allow Old GPUs: Not Detected. OpenGL Drawing Mode: Advanced OpenGL Allow Normal Mode: True. OpenGL Allow Advanced Mode: True. AIFCoreInitialized=1
AIFOGLInitialized=1
OGLContextCreated=1
NumGLGPUs=1
NumCLGPUs=1
NumNativeGPUs=1
glgpu[0].GLVersion="2.1"
glgpu[0].IsIntegratedGLGPU=0
glgpu[0].GLMemoryMB=3072
glgpu[0].GLName="AMD Radeon HD Tahiti XT Prototype OpenGL Engine"
glgpu[0].GLVendor="ATI Technologies Inc."
glgpu[0].GLVendorID=4098
glgpu[0].GLRectTextureSize=16384
glgpu[0].GLRenderer="AMD Radeon HD Tahiti XT Prototype OpenGL Engine"
glgpu[0].GLRendererID=16915457
glgpu[0].HasGLNPOTSupport=1
glgpu[0].CanCompileProgramGLSL=1
glgpu[0].GLFrameBufferOK=1
glgpu[0].glGetString[GL_SHADING_LANGUAGE_VERSION]="1.20"
glgpu[0].glGetProgramivARB[GL_FRAGMENT_PROGRAM_ARB][GL_MAX_PROGRAM_INSTRUCTIONS_ARB]=[16384]
glgpu[0].glGetIntegerv[GL_MAX_TEXTURE_UNITS]=[8]
glgpu[0].glGetIntegerv[GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS]=[16]
glgpu[0].glGetIntegerv[GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS]=[16]
glgpu[0].glGetIntegerv[GL_MAX_TEXTURE_IMAGE_UNITS]=[16]
glgpu[0].glGetIntegerv[GL_MAX_DRAW_BUFFERS]=[8]
glgpu[0].glGetIntegerv[GL_MAX_VERTEX_UNIFORM_COMPONENTS]=[4096]
glgpu[0].glGetIntegerv[GL_MAX_FRAGMENT_UNIFORM_COMPONENTS]=[4096]
glgpu[0].glGetIntegerv[GL_MAX_VARYING_FLOATS]=[128]
glgpu[0].glGetIntegerv[GL_MAX_VERTEX_ATTRIBS]=[16]
glgpu[0].extension[AIF::OGL::GL_ARB_VERTEX_PROGRAM]=1
glgpu[0].extension[AIF::OGL::GL_ARB_FRAGMENT_PROGRAM]=1
glgpu[0].extension[AIF::OGL::GL_ARB_VERTEX_SHADER]=1
glgpu[0].extension[AIF::OGL::GL_ARB_FRAGMENT_SHADER]=1
glgpu[0].extension[AIF::OGL::GL_EXT_FRAMEBUFFER_OBJECT]=1
glgpu[0].extension[AIF::OGL::GL_ARB_TEXTURE_RECTANGLE]=1
glgpu[0].extension[AIF::OGL::GL_ARB_TEXTURE_FLOAT]=1
glgpu[0].extension[AIF::OGL::GL_ARB_OCCLUSION_QUERY]=1
glgpu[0].extension[AIF::OGL::GL_ARB_VERTEX_BUFFER_OBJECT]=1
glgpu[0].extension[AIF::OGL::GL_ARB_SHADER_TEXTURE_LOD]=1
clgpu[0].CLPlatformVersion="1.2 (Apr 23 2021 00:31:40)"
clgpu[0].CLDeviceVersion="1.2 "
clgpu[0].IsIntegratedCLGPU=0
clgpu[0].CLMemoryMB=3072
clgpu[0].CLName="AMD Radeon HD Tahiti XT Prototype Compute Engine"
clgpu[0].CLVendor="AMD"
clgpu[0].CLVendorID=16915456
clgpu[0].CLDriverVersion="1.2 (May 3 2021 22:47:01)"
clgpu[0].CLBandwidth=2.09828e+11
clgpu[0].CLCompute=1864.77
nativegpu[0].NativeName="AMD Radeon HD Tahiti XT Prototype"
