Hi Jim,
Were the CC Tray Notifier and Client GUI running successfully prior to the reboot?
If not, make sure you've got a valid Java environment running command "java -version".
We support the latest version of Oracle Java 1.6 or Java 1.7._07 or later.
Try running our CC command line client in debug log with "ccollab --debug info".
Also, can you reach the CC server through the web UI with your browser?
If you're still having issues, please email support@smartbear.com and send us the output of the above commands, along with that debug logfile "ccollab.log" so we can take a look at what may be going on. Thanks!