dear mr:
when I install the pvelite 2012,it shown as follows :
error 1330 #.a file that is required cannot be installed because the cabinet pvelite 2012\pvelite \data1.cab has an invalid digital signature.this may indicate that the cabinet file is corrupe.error 266 was returened by winverifytrus.

There are the same case with others cumputers in my office.
but pvelite 2011 can be installed successfully.
why?