I am using Windows Vista Business. I am connected to a corporate network/domain. We save our files on a central drive. Frequently, I'll move files around, delete subfolders, etc. Occasionally, when trying to delete a folder, I'll get an error message stating "This operation can only be performed when you are connected to the network". I'm connected to the network and have no problem browsing through any of the files on the network as well as the internet. This seems to happen without rhyme or reason. If I reboot my computer, most of the time, it will then allow me to delete the folder.
What is going on here?