One of our departments (with 12 users, all running W7 Pro and patched with the latest updates) have a DB application which opens a tif file related to the record they're using. For 2 of the users the file doesn't open - it just hangs. For the remainder, the file is opened instantaneously.
The folder that the tif files are stored in is on a network drive (on a W2K8 server), referenced by a mapped drive letter. There are about 30,000 tiff files in the folder.
If I copy a tif file to the desktop and open it from there, it opens straight away.
If I copy a tif file to another network location (ie where there are not a large number of files) it also opens straight away.
If I 'explore' the network folder holding the tif files, the explorer window takes a long time to populate, and the address bar at the top has the green 'progress' bar moving from left to right. Doing this on any of the other PCs, the explorer window populates within a couple of seconds
If I open a command prompt and run a 'dir', it will display a few files, then pause, then show a few more, then pause, then show more etc etc
I've updated the network drivers to the latest, but the 2 PCs are not the same make model, and there are other examples of both make/model in this department that do work OK.
Any ideas as to what might be causing this slow reading of the files?