Dell U3011 and Mac Mini

A quick follow up to this.

Can I run a mini-displayport cable from the thunderbolt port to the displayport on the monitor to achieve the full 2560x1440 output?

I've managed to run the full 2560x1600 resolution from the Mac Mini via Mini DP to DP and that runs well. There are a few strange issues with the DP port though on the Dell and they are:

1. The Infrared signal on the Mac can sometimes get messed up by the monitor - no idea how this happens as it doesn't have an IR port but what sometimes happens is if the Mac and then monitor go to sleep and you then wake them up, the Apple Remote then fails to work unless you continuously press a button on the remote very close to the IR receiver of the Mac - then all's okay again until everything goes to sleep once more.

2. From time to time, after waking from sleep, the monitor fails to receive the signal from the Mac so you have to remove the cable and reinsert it.

Very annoying for two expensive bits of kit.

On the Dell OSD menu under Menu > Colour Settings > Input Colour Format I have RGB selected. I can also select the YPrPb setting.

From my knowledge you can only run one monitor at full 2560x1440 resolution as that res is only available via the mini-dp/thunderbolt output. Two have two monitors running at that res then you would need to purchase something like this: http://www.matrox.com/graphics/en/products/gxm/mac/choice/