>Hello all,
>
> I have a huge problem at hands.
> On my application, I have a Form that receives data from a barcode reader using MsComm control. My client just called me, to inform that he left his machine running at lunch-time, and when he came back, the monitor was off (which is normal), but the computer was frozen.
> He had to restart the machine using the power button, and now, everytime he tries to open the form to receive data, he gets a "Invalid Buff Dirty Call" error message that crashes my VFP program.
>
> My client is using Windows98SE, and my program was built usung VFP6.0 SP4.
>
> Any clue on this? Is it a VFP error, or a Windows one?
>
> Thank you in advance,

If you are using Native VFP tables, turning off the power is a problem. Try opening the tables directly and see if any of them return a Not a Table error. If so, you have some corrupted tables.