I'm hoping someone has run across this before and has a simple fix. I'm pulling my hair out over this one.
Site is a small law office. 6 PC's 4 of which are older self built AMD boxes /w your standard assortment of cheap components. All running XP Pro SP3. 1 of these machines is the "server". The server has a single shared folder which is mapped to all the other machines as drive r: Now one of the subdirectories in this share is the main data repository for the practice and contains roughly 10,000 files. They've used this setup for about 5 years with no issues at all.
Now the problem...They decided to expand a bit and purchased 2 IBM ThinkCentre refurbs from the local computer store. Dual core Pentiums, 1GB RAM, 80GB HDD, XP Pro SP3. Basic, but much more powerful than what they currently have. The problem is that these 2 new machines take FOREVER to display the folder /w 10,000 items in it. Everything else is near instant but that one folder takes 20-25 seconds to display vs. 2 seconds on the old POS machines.
I've tried everything I can think of. Firewall on/off, /w and without anti virus, different network cables, jacks, nics, router/switch, disabling shared task and printer checking, with and without indexing service. Installed software is the same on all machines. It's almost as if the older machines have cached the contents of the folder and the new machines have to scan it every time they access it.
I'm out of ideas, Any help would be appreciated.