Q: TRAIN TRACK® was working fine, but now when we try to open it, we see an error message "The expression onclick you entered produced the following error..." What is causing this? 

A: This may be caused by the VB code inside your database becoming corrupted due to a virus or other situation on your network. If you are using the desktop edition, make a back-up of your database then install a fresh copy and import your data from the back-up. If you are using the client/server edition, just install a fresh copy of the client interface. If you need further assistance, please contact us and we would be happy to help.