Ok, when I got home the amber lite was flashing again. I rebooted and had no problem last nite getting on the net. From what I am learning here, I guess there was an extreme amount of traffic on comcast. I ran my virus scanner and trojan program...all was clean. I have had cable since last June and never saw the lite stay lit. I do get busy blinking when there is traffic but the solid lite was VERY strange. Thanks for the help and if it happens again I won't panic.
It could have been that someone "hacked" into you. I have a friend who's into that kind of thing and I had him test it on my firewall / linksys router and zone alarm. The modem light went solid and stayed solid until my friend turned his "program" off.
Unless you actively talk on IRC, ICQ, or AIM, I doubt that anyone would want to do this to you though. But it is a possibility.