Allastair : >> Is the form that might be the cause one that is based on a temp table? <<
No. I never use temp tables for forms. >> Do you have any "set" commands that are database linked but with no database connected prior to calling the form? Or maybe ones that need the owner password? << No. DB is always open during form processing. I never use password protection and I keep the default password (public ?) >> Do you have any "unusual" software running while in R:Base - crashguard or a virus scanner, perhaps? << I can't anwser to that question because I ignore which softwares client's uses. Crashgard : probably NO. Virus : certainly YES. But some of them uses very heavy software running with my app (such as the german ERP package SAP). It could be also interesting to get answer to the following questions : Do the 'guilty' forms uses : formated fields (like [___] to convert lower cher. to upper ?) regions ? columns with expression (like IdClient = (LUC(IdClient)) ?) One more thing : I have a collection of Dr Watson log files comming from various clients .... but I am unable to find what you call the 'common denominator' ..... J.M. GRATIAS, Logimatique
