thanks, everybody.
good call, Bart, the first used in business date I had NOT had on there and now it gives me an allowable depreciation.
i had assumed there would be an Asset Entry (like all the other software I've used) that I could link to the 8829. I can't get an Asset Entry screen to come up, much less link it to the 8829.
I hope this Depreciation allowable (line 41) is being saved somewhere in case a client sells the house and needs to recapture the depreciation.