|Hi Texas - this is The Lounge forum, which is not for technical queries such as this.|
Would think the best place to post, would be the Networking or Windows XP forum.
However, is your work network manager able to assist
The problem suggests you have a browser checker (BC), which works differently when connected via your work network.
Are you able to identify which BC you have?
If so, it may require updating or configuring.
Good Luck - Keep us posted.