C:\WINDOWS>cpanp i Math::Big Installing Math::Big (1.12) gpg: Signature made 04/17/07 15:52:12 GMT Daylight Time using RSA key ID 93B84C15 gpg: Can't check signature: No public key [ERROR] Signature check failed for module 'Math::Big' -- Not trusting this module, aborting install *** Install log written to: C:\Documents and Settings\SG34\.cpanplus\install-logs\Math-Big-1.12-1348754888.log Error installing 'Math::Big' Problem installing one or more modules