Vista - Microsoft office 2007 errors

Hi

im having this problem regarding about the microsoft office 2007 error of
when im open any documents and to save when im done, it automitcally close
the appliation without any warnings to me... please help me if you can...
Problem signature
Problem Event Name: APPCRASH
Application Name: WINWORD.EXE
Application Version: 12.0.4518.1014
Application Timestamp: 45428028
Fault Module Name: PROPSYS.dll
Fault Module Version: 6.0.6000.16386
Fault Module Timestamp: 4549bd96
Exception Code: c0000005
Exception Offset: 0000358e
OS Version: 6.0.6000.2.0.0.256.6
Locale ID: 18441

Files that help describe the problem (some files may no longer be available)
8470121.cvr
8470323.od
Version.txt
8456985.od
CVRB19.tmp.cvr
AppCompat.txt
minidump.mdmp

View a temporary copy of these files
Warning: If a virus or other security threat caused the problem, opening a
copy of the files could harm your computer.

Extra information about the problem
LCID: 1033
Brand: Office12Crash
skulcid: 1033
Bucket ID: 346755973


advance thanks you