What version of VFP do you have ? version(1)? You should try alternate printer and/or video drivers.

Use the C:\WINDOWS\RSRCMTR.EXE program in your startup to warn you before its' too late.

>If I issue REPORT FORM ... PREVIEW a couple of times system resources get smaller and smaller and finally occurs the error: “There is not enough memory to complete this operation” - (Error 43)
>Those anyone solve a problem like this?