T-Bolt Display not working with iMac Retina

When I replaced my Late 2012 iMac with the new iMac Retina, the Thunderbolt Display I use for a second monitor would not come on and is not visible in the iMac's "Displays" preferences. Has anyone had this problem? I tried rebooting the iMac, but no luck.
According to Apple, this iMac IS capable of outputting to two Thunderbolt displays. I have the upgraded video card in the iMac.

Ugh. I'm an idiot. I never imagined the Apple Thunderbolt/mini-DP cable would go bad between unplugging the old mac and plugging in the new one. I tried a different cable and the display came on. Problem solved!

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4/11/14 10:19:24.832 AM Console[11817]: Marker - Apr 11, 2014, 10:19:24 AM
4/11/14 10:19:27.809 AM WindowServer[96]: Received display connect changed for display 0x42c0140
4/11/14 10:19:27.814 AM WindowServer[96]: Found 60 modes for display 0x042c0140 [39, 21]
4/11/14 10:19:27.835 AM WindowServer[96]: Received display connect changed for display 0x3f003d
4/11/14 10:19:27.835 AM WindowServer[96]: Found 1 modes for display 0x003f003d [1, 0]
4/11/14 10:19:27.836 AM WindowServer[96]: Received display connect changed for display 0x3f003e
4/11/14 10:19:27.836 AM WindowServer[96]: Found 1 modes for display 0x003f003e [1, 0]
4/11/14 10:19:27.849 AM WindowServer[96]: Display 0x042c0140: GL mask 0x1; bounds (0, 0)[2560 x 1440], 60 modes available
Main, Active, on-line, enabled, built-in, boot, OpenGL-accel, Vendor 610, Model b005, S/N 0, Unit 0, Rotation 0
UUID 0x1cbf8fef38ae9dfec93508341d780c47, ColorProfile { 2, "iMac"}
4/11/14 10:19:27.849 AM WindowServer[96]: GLCompositor: GL renderer id 0x01022724, GL mask 0x0000000f, accelerator 0x0000449b, unit 0, caps QEX|MIPMAP, vram 1024 MB
texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
4/11/14 10:19:27.849 AM WindowServer[96]: Display 0x003f003f: GL mask 0x8; bounds (3584, 0)[1 x 1], 2 modes available
off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
4/11/14 10:19:27.849 AM WindowServer[96]: GLCompositor: GL renderer id 0x01022724, GL mask 0x0000000f, accelerator 0x0000449b, unit 0, caps QEX|MIPMAP, vram 1024 MB
texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
4/11/14 10:19:27.849 AM WindowServer[96]: Display 0x003f003e: GL mask 0x4; bounds (3585, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
4/11/14 10:19:27.850 AM WindowServer[96]: Display 0x003f003d: GL mask 0x2; bounds (3586, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
4/11/14 10:19:27.869 AM WindowServer[96]: Display 0x042c0140: Unit 0: Startup Mode 2560 x 1440, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80000000, ioModeDepth 0x2, IOReturn 0x0
4/11/14 10:19:27.869 AM WindowServer[96]: Display added
4/11/14 10:19:27.869 AM WindowServer[96]: Display removed
4/11/14 10:19:27.870 AM WindowServer[96]: Display 0x042c0140: GL mask 0x1; bounds (0, 0)[2560 x 1440], 60 modes available
Main, Active, on-line, enabled, built-in, boot, OpenGL-accel, Vendor 610, Model b005, S/N 0, Unit 0, Rotation 0
UUID 0x1cbf8fef38ae9dfec93508341d780c47, ColorProfile { 2, "iMac"}
4/11/14 10:19:27.870 AM WindowServer[96]: GLCompositor: GL renderer id 0x01022724, GL mask 0x0000000f, accelerator 0x0000449b, unit 0, caps QEX|MIPMAP, vram 1024 MB
texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
4/11/14 10:19:27.870 AM WindowServer[96]: Display 0x003f003f: GL mask 0x8; bounds (3584, 0)[1 x 1], 2 modes available
off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
4/11/14 10:19:27.870 AM WindowServer[96]: GLCompositor: GL renderer id 0x01022724, GL mask 0x0000000f, accelerator 0x0000449b, unit 0, caps QEX|MIPMAP, vram 1024 MB
texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
4/11/14 10:19:27.870 AM WindowServer[96]: Display 0x003f003e: GL mask 0x4; bounds (3585, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
4/11/14 10:19:27.870 AM WindowServer[96]: Display 0x003f003d: GL mask 0x2; bounds (3586, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
4/11/14 10:19:27.899 AM WindowServer[96]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x042c0140 device: 0x7fccf9d04630 isBackBuffered: 1 numComp: 3 numDisp: 3
4/11/14 10:19:29.836 AM WindowServer[96]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
4/11/14 10:19:29.868 AM WindowServer[96]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
4/11/14 10:19:29.881 AM WindowServer[96]: Display 0x042c0140: Unit 0; ColorProfile { 2, "iMac"}; TransferFormula (1.000000, 1.000000, 1.000000)
4/11/14 10:19:29.893 AM WindowServer[96]: Display 0x042c0140: Unit 0; ColorProfile { 2, "iMac"}; TransferFormula (1.000000, 1.000000, 1.000000)
4/11/14 10:19:29.907 AM WindowServer[96]: Display 0x042c0140: Unit 0; ColorProfile { 2, "iMac"}; TransferFormula (1.000000, 1.000000, 1.000000)
4/11/14 10:19:29.934 AM WindowServer[96]: Display 0x042c0140: Unit 0; ColorProfile { 2, "iMac"}; TransferFormula (1.000000, 1.000000, 1.000000)
4/11/14 10:19:38.781 AM Console[11817]: Marker - Apr 11, 2014, 10:19:38 AM

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