issue: using computed observable to format field

[Greg Greenhaw]

I am using a computed observable to format the value in a text field, So the numeric value is formated like "$5.00" and if

someone types a value of 5 in the field when the value is already $5.00 the field looses it formating. 

So instead of the input value looking like $5.00 it looks like 5. 

So amount the amount didn't technically update the input lost its formating.

[Eric Anderson]

http://knockoutjs.com/documentation/computed-writable.html

Take a look at the above. Without your code to reference, it sounds like you are overwriting your computed when the user enters a new value.