ActiveX control is not downloaded

I created a VB6 ActiveX control, created the CAB file using "Package &
Deployment Wizard", sign the CAB file with Verisign, and copy the CAB file
to a website.
I am able to download older CAB files, but recent CAB file that I created I
can not download them. It prompts me to download the control, and I said yes
to download, but it did not get downloaded. I un-register MSVBVM60.DLL and
rename the file, but when downloading the CAB file, it did not prompt me to
download the VBRUN60.CAB. What can I check to see whey the control did not
get downloaded ?
Thank you.