I'm almost positive I don't, but....... I was just reading reviews on Amazon regarding the previous base model Mac Mini (1.83, 80, 1). The review mentioned that an adapter is needed in order to use this model mini with his 23" ACD. He said it cost $99 from Apple. Is this true (maybe he was mentioning the really old 23" ACD instead)? I want to purchase the previous base model Mini (found it for cheap, no I don't need the new model) to use with my 20" ACD, but I certainly don't want to purchase this adapter. Please clear up my confusion. Thanks! Here is his quote: Complaint #1: First thing I discovered when I went to hook up my new Mac Mini: I could not connect my "older" (c. 2004) 23" Cinema Display. Apple doesn't tell you that part. If you have an older Cinema Display with an ADC connection (it looks like it'll fit this DVI connection, but count the pins - it's wider), you'll have to purchase Apple's DVI-to-ADC adapter (P/N M8661LL/B). Unfortunately, it's expensive ($99 from apple or $89 on amazon plus shipping), it's bulky (almost as big as the mac mini), requires use of one of my precious USB ports and yet another electric outlet.