Problem with new promnea sunlight

[mkallen81]

Hello,
I have a new promnea sunlight. I am relatively new to orchids and this thing is blasting buds since i brought it home two weeks ago. I have put it in a well lit but not direct sunlight area. I watered it because i read they like to be wet. The buds started turning brown, then the brown follows down the stem gradually until the entire stem is dead. It has killed 3 or 4 already maybe 5 and none of the other buds are even attempting to open. Now i noticed today there are tiny tips on the leaves that are brown.

i got worried that it was too wet, so i have been letting it dry out. It is much drier than before but still moist.

What am I doing wrong?

Please help!

Thanks bunches!!
Melannie