I loved this monitor when i was still using Vista x64 and the HD4870 graphics card. It took a while to have them supported but the 2.0.0 software of the included calibration device finally did. Now on Win7 x64 and HD5870, it simply refuses the monitor as it claims it's not supported (seems to think it's a different monitor). No way around this and Samsung is notoriously bad for supporting older models. So, it still works as a regular monitor, but calibration is now bricked and no way to get it back. That makes the color accuracy (the whole point for the XL series) a non-feature. I wish the software would allow to calibrate anyway, even if the current configuration is not in the list. Especially when it SHOULD work but doesn't because apparently some code is not updated!I have no confidence Samsung will step out of their shadow on this one. Support is likely to be permanently outdated.