Do you have a picture? It's impossible to diagnose the problem from the information you've given. We'd have to know the pot/plant size, depth of substrate, watering habit, etc. It could be many things.

perhaps you have a humidity problem? how moist is your soil? are you using a pebble dish/where is your plant located?

-ming

When I won a Tiger Kitten on ebay, the seller told me to keep it "on the dry side." Its in a 4" square pot, and I've only been watering it about once every two weeks, and its doing great - even growing new leaves. Maybe you're watering it too often? It might also be getting a bit too much direct sun. Mine only gets a couple hours of direct sun daily, but is in good light.

In any case, I feel down into the soil two inches, and if its moist, I don't water - only when its dry down to that depth. This is my first begonia so I'm no expert. I mainly grow orchids and succulents. Maybe you should knock it out of the pot and see if its roots are rotted. I suspect that may be the case. Repot it in half peat/half perlite (this will drain well), after cutting off the rotted roots, and if it has any roots left, it may bounce back, although it will probably take a bit of time and TLC. Keep us posted.

Randi

hmm. sadly to say, i've overwatered begonias in the past and i don't think that leaf crisping is a direct result of that. i would think that randi is on the money as far as too much direct sun exposure, or that the humidity levels are low. 'Tiger Kitten' being a bowerae hybrid should bounce back easily, though, once you fix its conditions. DO check the soil as randi suggests, and move your plant if it's getting too much direct sunlight. try a terrarium environment if you're really worried, but a pebble dish should do the trick, too.

-ming

thank you all for your valuable input. My digicam is not handy so I won't be able to post pix right now. Rethinking what I've done, I must have overdone it with the water and also put it in too bright a spot. Don't have a pebble dish I will do that. Seaecho's suggestions sound good, I will do that as the plant is not that old. Maybe it will forgive me. again, thanks everybody.