I have two PCs, one at work and one at home. They both run under NT4, SP3 and I use VB6 Enterprise on both and yet the VB IDE behaves differently! I also don't use SourceSafe on either PC. Here's the problem. At work when a module is read-only, I can still edit it in the IDE. When I want to save the changes all I need to do is to first change the read-only property. At home however if the module is read-only, the IDE won't let me make any changes to it and I get the "Can't edit module" error message. Does anyone have any idea why this happens?