Miltoniopsis leaves turning yellow after it dried out - anything I should do?

[RosieC]

Ok, so I'm not really surprised that after my miltoniopsis got too dry while I was away it has a couple of leaves that have turned yellow.

I've kept it watered since I got back, but is there anything else I should be doing?

The two pseudo bulbs are also very shriveled, will they get better or will they always be like that now?

Also I'm worried that some of the other leaves look too dark. Is this likely to be due to the lack of water last week, or could it be lack of light?

Finally, I'm not comfortable yet with looking after this plant at all. I am worried about over-watering it at the same time that I am worried about under-watering it

I re-potted it when I got it a couple of months ago and the roots were OK (I think) but the pseudo bulbs were already starting to shrivel slightly before I went away and I'm paranoid the roots have died since I saw them. Were the pseudo bulbs shriveling because I was not watering enough (which is quite possible) or because the roots have rotted.

The new medium was pretty open and very well drained and I don't want to disturb it if I am just under-watering. What would you guys suggest, should I take it out and look at the roots again or leave it be and up my watering slightly?