I have a multi-user Access application, with split-database design (data on network drive. Forms, reports, queries, macros on user's PCs). The app has eleven tables, with a moderately complex design. All was working well until 2 users got new PCs. The app is suddenly running very slow on those 2 PCs. Deleted and relinked tables (no improvement). What system differences should I investigate to determine the problem? Thanks!!