For now, I have taken these actions, based on recommendations in this thread

(1) I have excluded the folder where all my project files are located so that it is not scanned by antivirus
(2) I have turned off write caching
(3) I have set all the temp files used by VFP into their own folder (hmmm, should this folder be excluded from AV as well)
(4) I have removed FoxUser.

No problems yesterday. We'll see if that continues.

Thanks to all for your help

Jim




>I agree with Tore. Something must have changed for this to suddenly become a regular occurrence. Have you tried doing a System Restore?
>
>We are all grabbing at straws here. I know how aggravating these things can be. Please let us know what it was, will you? Good luck!
>
>>Tore --
>>
>>(1) My hardware configuration has not changed in many months -- probably more than a year.
>>
>>(2) It happens on many forms. And not necessarily the first time I work on it; I can be modifying and testing it, opening and saving it repeatedly, and it will suddenly fail.
>>
>>I have seen no pattern whatsoever in the problems.
>>
>>
>>>Jim,
>>>
>>>1. did you change any hardware on your computer?
>>>2. does this happen on only one form, or on many forms?
>>>
>>>>Neil -- Certain corruption?
>>>>
>>>>I am just wondering if it is so certain, how come I went for years without encountering it, and now seem to be encountering it almost daily (starting maybe a month ago).
>>>>
>>>>Jim
>>>>
>>>>>Write caching = random corruption
>>>>>Write caching + real virus scanning = certain corruption
>>>>>
>>>>>>OK, those look like very detailed instructions. Write caching is enabled for the disk where my apps live. How is that relevant?
>>>>>>
>>>>>>>Turn Disk Write Caching On or Off
>>>>>>>
>>>>>>>1. Right-click My Computer, and then click Properties.
>>>>>>>2. Click the Hardware tab, and then click Device Manager.
>>>>>>>3. Expand Disk Drives.
>>>>>>>4. Right-click the drive on which you want to turn disk write caching on or off, and then click Properties.
>>>>>>>5. Click the Policies tab.
>>>>>>>6. Clear the Enable write caching on the disk check box as appropriate.
>>>>>>>7. Click OK.
>>>>>>>8. Restart the Computer.
>>>>>>>
>>>>>>>>I have absolutely no idea. I have never done anything with write caching, nor do I know how to.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>>Is write caching disabled on all HDD in the system?
>>>>>>>>>
>>>>>>>>>>I've been getting the following error message every day or so:
>>>>>>>>>>
>>>>>>>>>>Memo File (Form-Name).SCT is missing or invalid.
>>>>>>>>>>
>>>>>>>>>>This occurs after I have been working on a form, when I try to save it. It's not the same form every time or anything, so I can see no pattern.
>>>>>>>>>>
>>>>>>>>>>Now, obviously, the SCT had to exist when I opened the form to edit it, and I can see that it exists, so it must have become invalid.
>>>>>>>>>>
>>>>>>>>>>How can that happen, if I am saving it???