"company" field gets overwritten by address field or disappears completely noticed only after search

[rromanstefoglo]

I'm running Act Premium 2009. We noticed that after searching thru contacts, the "company" field will either disappear completely or be replaced by the contacts address usually. It happens to the first contact in a search lookup screen. Does anyone know what is causing this? It has been going on for months and has grown to be slightly more than a nuisance.