[Dev-C++] Problems Installing Beta 5

[<and...@su...>]

Dear Users,

   When I try to run the devcpp4980.exe (beta 5), the following
message appears:

"Installer corrupted or incomplete.
This could be the result of a failed download or corruption from
a virus.
If desperate, try the /NCRC command line switch (NOT recommended)"

   I did not try this switch. First I would like to know what is
happening with you, gurus.

ps1: I´ve tried a lot of different mirror sites and the same problem
    still appears.
ps2: WinXp computer

Regards
Andre Barros