Hmanvel,
Sorry I didn't get back to you on Friday, but I was off work, and boycotting our email system...
We are all noobs at one time or another, and this stuff can look pretty scary. I'll try to keep from getting any more technical than we need to--my favorite quote from Albert Einstein is, "Things should be as simple as possible, but not simpler". Congratulations on finding what is probably the BEST forum for the type of help you're seeking.
Why don't you tell me a bit about your data entry operation and I'll try to lead you down the path of understanding.
Specifically need to know if you're using a form to enter the data, and what is the format of the field in the table (is it numeric or text, is it an integer, or a floating-point number, is there any formatting applied at the table level, are you totaling the field on the form, is it a data entry/continuous form; etc.)
I'm putting out a fire in our Oracle database this morning, so may not get back to you today, but will be glad to stick with you until you have a solution.
Tranman