Vista - Software install error after moving My Documents to server

I'm using Windows Vista Business and I moved my Documents folder to a
network share and then set it up as an offline file, so that it's
backed up. Once I did that, I keep getting errors when I try to
install software. I've had problems installing Symantec Anti-Virus,
Adobe Reader, etc. If I copy my Documents back to my laptop and turn
off Offline Files, the install works fine. Anyone else experience
this? Right now I'm trying to install an Adobe Reader update and it
won't work and going through the steps to turn off Offline Files is a
pain.