Ever since the 1.13 patch on Monday I have been unable to log in or even sit on character select for more that a minute. The character background gets very twitchy with constant rendering errors resulting in green, black and orate triangles. Then the client crashes. Below is what I think is the relevant portion of the crash report:

Process: eso [481]
Path: /Applications/ZeniMax Online/*/eso.app/Contents/MacOS/eso
Identifier: com.zenimaxonline.eso
Version: 1.0.0 (1.0.0)
Code Type: X86 (Native)
Parent Process: ZeniMax Online Studios Launcher [412]
Responsible: ZeniMax Online Studios Launcher [412]
User ID: 501

Date/Time: 2014-06-04 21:25:44.989 -0500
OS Version: Mac OS X 10.9.3 (13D65)
Report Version: 11
Anonymous UUID: D6E03EF1-ABD6-774C-1102-2572DB202326


Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000

Application Specific Information:
abort() called

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x93c97952 __pthread_kill + 10
1 libsystem_pthread.dylib 0x9ad80167 pthread_kill + 101
2 libsystem_c.dylib 0x9234d29c abort + 155
3 com.apple.GeForceGLDriver 0x4832e85f 0x48000000 + 3336287
4 com.apple.GeForceGLDriver 0x4832e8fa gldPresentFramebufferData + 150
5 GLEngine 0x9863d590 glSwap_Exec + 96
6 com.apple.opengl 0x96e093fb CGLFlushDrawable + 67
7 com.apple.AppKit 0x918320e1 -[NSOpenGLContext flushBuffer] + 24
8 com.zenimaxonline.eso 0x00decea3 wcsncasecmp + 317059
9 com.zenimaxonline.eso 0x00ded8f8 wcsncasecmp + 319704
10 com.zenimaxonline.eso 0x00df0e8b wcsncasecmp + 333419
11 com.zenimaxonline.eso 0x00044f3d start + 270269
12 com.zenimaxonline.eso 0x00045123 start + 270755
13 com.zenimaxonline.eso 0x00045b65 start + 273381
14 com.zenimaxonline.eso 0x00044ce6 start + 269670
15 com.apple.Foundation 0x969f676b __NSFireTimer + 117
16 com.apple.CoreFoundation 0x94e0eeb6 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 22
17 com.apple.CoreFoundation 0x94e0e873 __CFRunLoopDoTimer + 1395
18 com.apple.CoreFoundation 0x94e8906d __CFRunLoopDoTimers + 349
19 com.apple.CoreFoundation 0x94dc6363 __CFRunLoopRun + 1779
20 com.apple.CoreFoundation 0x94dc59fa CFRunLoopRunSpecific + 394
21 com.apple.CoreFoundation 0x94dc585b CFRunLoopRunInMode + 123
22 com.apple.HIToolbox 0x94950b5d RunCurrentEventLoopInMode + 259
23 com.apple.HIToolbox 0x949508e2 ReceiveNextEventCommon + 526
24 com.apple.HIToolbox 0x949506bd _BlockUntilNextEventMatchingListInModeWithFilter + 92
25 com.apple.AppKit 0x911fb369 _DPSNextEvent + 1602
26 com.apple.AppKit 0x911fa890 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 119
27 com.apple.AppKit 0x911ed17c -[NSApplication run] + 727
28 com.zenimaxonline.eso 0x00046753 start + 276435
29 com.zenimaxonline.eso 0x00002fb5 start + 53

And this my machines summary
Model: iMac13,2, BootROM IM131.010A.B05, 4 processors, Intel Core i7, 3.4 GHz, 16 GB, SMC 2.11f14
Graphics: NVIDIA GeForce GTX 680MX, NVIDIA GeForce GTX 680MX, PCIe, 2048 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434314753364D465238432D50422020
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434314753364D465238432D50422020