Hi there, Recently, I purchased a Mac Mini for use at our business as the point of sale computer. Personally, I've been a Mac for years now, but this is the first time we've put a Mac to use in our business. We've had problems in the past with extraneous internet browsing on our computer, etc. This was all on a PC, and it was easy enough to block internet browsing by requiring a password. My problem now is, how do I do essentially the same thing, but on OS X? We tried creating separate login accounts, but this created a problem when using the Quickbooks program. Any ideas? As always, thank you for any help!