Howdy folks, First post, but here goes. This morning when I booted my machine (XP pro, sp2, zone alarm, panda av), it froze immediately with the mouse in the middle of the screen , with an hourglass, like mentioned in this thread. I hit the "R" button on the front of my machine, and when it rebooted there was a new icon on my desktop. It is ATI CATALYST shortcut, which lead me to this thread in Wilders Security Forums. In addition, the #2 machine (XP home, sp1 (stupid I know, but we could not establish connection with sp2 after seperate installs), zone alarm, panda, abtrusion protector) appears to have been invaded because it attempted to log on to an web based email account unsuccessfully. These two machines are connected by a Linksys BEFSX41 firewall router, which in turn is connected to a cable modem. So, I ran adaware, spyware blaster, crap cleaner (would not run on primary machine), and a full panda scan. Nothing too fishy turned up. In addition I reset the password on the router and set all zone alarm program controls to "block" except for those I absolutely needed, which I set to "ask". I checked the event log, per the thread noted above, and in "application" at the time the ATI icon appeared on my desktop: -wuaueng.dll (716) SUS20ClientDataStore: The database engine started a new instance (0). and in "system" about an hour earlier were two instances of: TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts. Then: -The Ati HotKey Poller service entered the stopped state -The iPod Service service entered the stopped state. -The ATICDSDr service was successfully sent a start control -The ATICDSDr service was successfully sent a start control. -Installation Successful: Windows successfully installed the following update: RADEON 9800 PRO Update It bears noting that I have had "sophisticated" malicious visitors on several occassions. My question is: did I have an uninvited visitor? What may they have done to my machines? Please excuse me if I seem out of my depth, but I am. Thanks in advance, and you have a nice forum here.