Manager always crashes on 2008 R2 x64

Hello,

I just installed 9.1 on a 2008 R2 x64 server. I installed it in service mode and when I run the manager, it just crashes immediately. When I install it in application mode, it works fine.

Here's the error info, any help would be appreciated, thanks!!

Problem signature:

  Problem Event Name:     APPCRASH

  Application Name:     Syslogd_Manager.exe

  Application Version:     9.1.0.0

  Application Timestamp:     4b78631b

  Fault Module Name:     StackHash_5b2b

  Fault Module Version:     0.0.0.0

  Fault Module Timestamp:     00000000

  Exception Code:     c0000005

  Exception Offset:     02fe194e

  OS Version:     6.1.7600.2.0.0.274.10

  Locale ID:     1033

  Additional Information 1:     5b2b

  Additional Information 2:     5b2b4bbe2374c240b72f833a3ef7e30e

  Additional Information 3:     f660

  Additional Information 4:     f660de6916f397fec31d7584f0e23743