I have run into the same thing, but in my case it was on both laptops and desktops. Each group of machines had a different set of files being synchronized and the policy was applied by OU, and also all of them had the My Documents folder redirecting to a synchronized network "home" folder. On 1 out of 20 computers I would notice that I was having the same problems you described. The only thing I could do was disable offline synchronization and reapply the policies. It then looked normal after that. Sorry if none of this helps.