I spent 15 years in IT - everything from LAN/WAN design and maintenance to desktop and server systems. Hell, I even worked tech support at cell phone companies.
Please, always reboot you shit as a FIRST step before calling.
For real, it works surprisingly like 90% of the time.
Deth Spoon (aka Steven Moses)
As an IT worker, I beg you to turn your computer off and then turn it on again before calling IT.