Possibly - two caviates:

1. Some employers block the Slingbox ports.  You may need to change your SlingBox port settings.
2. Some employers frown on the use of Slingbox while at work.   There have been reports of people whose jobs have been jeopardized after watching their SlingBox at work.  Two issues are involved here - the use of your time and the use of the Internet band width.  Be sure that your supervisors and IT people do not have a problem with your using their systems for this purpose.