I have a Core i7 920 with 18GB of memory.  When I try to mine with ptsminer_64bit_avxsse, it crashes as soon as it submits a share.  I am simultaneously mining LTC with cgminer but I get the crash whether I am dual-mining or not.

connecting to 54.201.26.128:1337
[MASTER] work received - sharetarget: 03ffffffffffffffffffffffffffffffffffffffff
ffffffffffffffbeefde4d
[WORKER] collision found: 30018560 <-> 56516275 #28 @ 1385219750 by 0
[MASTER] submitted share -> SHARE

---- Crash Window from Windows 2008R2 SP1

[Window Title] ptsminer_64bit_avxsse.exe

[Main Instruction] ptsminer_64bit_avxsse.exe has stopped working

[Content] Windows can check online for a solution to the problem.

[V] View problem details  [Check online for a solution and close the program] [Close the program]
Problem signature:
  Problem Event Name:   APPCRASH
  Application Name:   ptsminer_64bit_avxsse.exe
  Application Version:   0.0.0.0
  Application Timestamp:   528e69bc
  Fault Module Name:   ptsminer_64bit_avxsse.exe
  Fault Module Version:   0.0.0.0
  Fault Module Timestamp:   528e69bc
  Exception Code:   c000001d
  Exception Offset:   0000000000031cca
  OS Version:   6.1.7601.2.1.0.272.7
  Locale ID:   1033
  Additional Information 1:   c83f
  Additional Information 2:   c83fe5dcee39ca79e8546e33b9d46547
  Additional Information 3:   828d
  Additional Information 4:   828d26da80543ab0a822ef661126f65f

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JHProtoMiner is also usually unable to connect or, when it can, it doesn't detect any collisions on beeeeer.  It does work on ypool and gets about 40-50 more c/m but I'd rather be mining on beeeer if I can.