Post the script so I can see what changes have been made and maybe I can help.
Make sure you have no other scripts running that are altering global variable #1.
I loaded my cash system on my new netbook the other day and the system worked fine with v118.008.
However, when examining my files I noticed that the 6th painting was assigned to cs1 in its FPE.
It has been awhile since I made this thing so I will have to go in and re-examine the scripts, but I am pretty sure that 6th painting should be using cs6.fpi not cs1.
It shouldn't make much difference when dealing with 100's or 1,000' but it would have an affect on 10's and 1's.
Any value less than 100 may experience problems, so if you encounter that you can either avoid small values in your prices or try changing that script assignment for the 6th painting.