Blocked start-up programs

Hello,
i have vista home basic.
Recently I've had to block a start-up program because for some reason
it was not letting me view web pages (I don't get it - I had to call
HP tech support and they walked me through it). So my internet
viewer is working just fine, no prob.
But now a window comes up constantly in the lower right-hand corner
saying "Windows has block start-up programs - click here to view
programs." How do I get this window from popping up all the time?
It's really annoying.
Thanks!