Yosemite and dual monitor crashes

I installed Yosemite the day it was released and did not do a clean install. Everything seems to work really well except for the crashes I have been getting once a day. I believe the crashes are related to having 2 monitors, because once i unplug the secondary display all the crashes disappear.

My current config is the Mac Pro (late 2013) with D700's. 1 Thunderbolt display and 1 ASUS PB287Q. BTW, I have the correct thunderbolt cable and all the settings are correct for 60hz.

Is anyone experience the same problem, or maybe some suggestions.

I am pasting what I think is relevant from the crash itself. They all appear to be very similar. If you need to see the whole thing please let me now.

Thanks
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Anonymous UUID: 5CD66C36-B8C5-074F-E33B-5B3EC0CF98B8

Fri Oct 17 10:48:27 2014

*** Panic Report ***
panic(cpu 8 caller 0xffffff801861e80a): Kernel trap at 0xffffff801830e11b, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0xffffff83ff6d9000, CR3: 0x000000002bf27000, CR4: 0x00000000001626e0
RAX: 0x0000000000000000, RBX: 0x0000000000000654, RCX: 0x0000000000000800, RDX: 0x0000000000000000
RSP: 0xffffff83cf57b888, RBP: 0xffffff83cf57b900, RSI: 0x0000000000005000, RDI: 0xffffff83ff6d9000
R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0x000000000000000b, R11: 0x000000000000004d
R12: 0x0000000000000004, R13: 0xffffff806554a000, R14: 0x0000000000000002, R15: 0xffffff83ff6d8000
RFL: 0x0000000000010206, RIP: 0xffffff801830e11b, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0xffffff83ff6d9000, Error code: 0x0000000000000002, Fault CPU: 0x8

Backtrace (CPU 8), Frame : Return Address
0xffffff83cf57b530 : 0xffffff801853a811
0xffffff83cf57b5b0 : 0xffffff801861e80a
0xffffff83cf57b770 : 0xffffff801863a443
0xffffff83cf57b790 : 0xffffff801830e11b
0xffffff83cf57b900 : 0xffffff7f998eb2a7
0xffffff83cf57b930 : 0xffffff7f9b1de2c3
0xffffff83cf57ba10 : 0xffffff7f9b1de6ab
0xffffff83cf57ba40 : 0xffffff7f9b1ddd94
0xffffff83cf57ba80 : 0xffffff7f9b1dda3c
0xffffff83cf57bac0 : 0xffffff7f9b1d6847
0xffffff83cf57bc70 : 0xffffff7f9b1d6dc8
0xffffff83cf57be20 : 0xffffff7f998ec71a
0xffffff83cf57be60 : 0xffffff7f998ebb50
0xffffff83cf57be90 : 0xffffff7f998e7d33
0xffffff83cf57bef0 : 0xffffff8018ad7162
0xffffff83cf57bf40 : 0xffffff8018ad507d
0xffffff83cf57bf80 : 0xffffff8018ad5146
0xffffff83cf57bfb0 : 0xffffff80186192c7
Kernel Extensions in backtrace:
com.apple.iokit.IOGraphicsFamily(2.4.1)[6D99A3BE-D531-3780-880B-13F2FC894A4A]@0xffffff7f998dc000->0xffffff7f99916fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff7f98d24000
com.apple.kext.AMDFramebuffer(1.2.8)[4790ED88-F7A7-3C31-9067-4089099C6523]@0xffffff7f9b1ce000->0xffffff7f9b1f1fff
dependency: com.apple.iokit.IOACPIFamily(1.4)[70E2B65E-A91A-3522-A1A0-79FD63EABB4C]@0xffffff7f9981d000
dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff7f98d24000
dependency: com.apple.kext.AMDSupport(1.2.8)[14D80F2F-98CC-37E7-A82D-9830F56BF58C]@0xffffff7f9a9eb000
dependency: com.apple.iokit.IOGraphicsFamily(2.4.1)[6D99A3BE-D531-3780-880B-13F2FC894A4A]@0xffffff7f998dc000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
14A389

Kernel version:
Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64
Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61
Kernel slide: 0x0000000018200000
Kernel text base: 0xffffff8018400000
__HIB text base: 0xffffff8018300000
System model name: MacPro6,1 (Mac-F60DEB81FF30ACF6)