cygwin git diff crash

Ok this is a weird issue and it's probably cygwin's fault, but I
haven't found any way to fix it so I' thought I would throw it out
here for comment.

I am using git 1.6.0.4 on cygwin. I have a repo where if any file has
changes and git detects as mode 100644 I get this error:
$git diff
      3 [main] git 2744 C:\cygwin\bin\git.exe: *** fatal error - could
not load user32, Win32 error

If I change the mode to 100755 git diff will work fine.
$chmod a+x test.cpp
$git diff

diff --git a/test.cpp b/test.cpp
old mode 100644
new mode 100755
index 7c0dfcd..20987a7
--- a/test.cpp
+++ b/test.cpp

@@ -6,9 +6,11 @@ int main()

 void func()
 {
+       int a;^M
 }

 void func2()
 {
+       int b;^M
 }

Anybody have a clue as to why this might occur?  I have seen this in
many of the repo's I use, but it is not repeatable.  I tried making a
test repo but could not reproduce.

Thanks!
Jeremy