Hi Tony
thank you for the quick reaction. I may not have explained correctly so to clarify an example (all names are formfields):
text1: 2; text2: 4.00; cost1=text1*text2, result: 8.00
text3: 3; text4: 5.00; cost2=text3*text4, result: 15.00
total = cost1+cost2, result 46.00 (instead of 23.00)

It would be great If you or somebody else could have an other look at the problem.
Could it be a flaw in Word 2007?

Regards
Joachim.