Hello! I have AMD (ATI) 5870 video and Thunderbolt Display. My graphic card has displayport output. Can I attach Thunderbolt Display to it through DP>mini-DP adapter, will it work? I just read that some users with standard 5870 graphics (non-eyefinity) on PC are experiencing problems with Apple displays. Can anybody confirm how does it work with exactly the same graphic card? If it will make some difference, I can also order older 27'' LED Cinema Display. Thank you!