>Here's the (very basic information that I have so far) configuration for my client's PCs
>
>File server is on Win XP
>Workstation is W2000
>
>The problem happens on the workstation.
>
>The app gives a rather strange (to me at least <g>) error. From what my client has told me there is (at random in the execution of my software) that error that appears in the top right portion of the screen.
>
>From what I understood this is not an error given by VFP. My client told me that that error appears in a box and this message is displayed in a banner way. I mean message scrolls in that box.
>
>The message goes something like "Cannot access data" (Excuse me I don't have the exact message right now but I can tell you that it's access to data related). When they have that error they're forced to reboot.
>
>Anyone have the slightest idea what could be wrong here?

Yes, I have an idea. At the bottom of the screen you may see a scrolling message, like 'Attempting to lock' (I forgot the message myself).

It happens when table is buffered and another operation tries to open this table in transaction.

Hard to track this problem is and very scary for the users.