thank you mike for your reply. I clicked your I.E. link and followed the instructions but, unfortunately, the same error message appeared and flash player didn't install. thank you for taking the time to try to help. it has been suggested that I install google chrome, which I don't really want to do because of the size of the program, and i'll maybe give it a try. all the best.
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"the signature of this program is corrupt or invalid".
This could mean that the download is corrupted. The file size of the installer is 16,894 KB (17,298,824 bytes); download it again if it's different.
P.S. this is a public forum; please don't post your email address (by sending the entire forum notification message with all its headers back to the forum).