HP scanner download problem

[Delage]

I have downloaded the software for my HP ScanJet 3300C scanner, but get a popup that says: "HP PrecisionScan LT Setup. You may see a message about " Digital Signature Not Found". You must click "Yes" for the upgrade to install correctly. OK." I cannot find where to click "Yes". This pops up about every three minutes, it's very annoying. Where do I go from here? Delage

[renegade600]

try another browser to see if this is a browser problem.

[Delage]

This message pops up about every 3-4 minutes on Firefox, so I tried Internet Explorer and found it happens every 12 minutes. What now? Delage