>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,

There's a similar problem with the Class Browser. In that case, deleting the tables associated with the Browser are the fix. I would think that something similar is at work here. I'd first try to delete the resource files (if used). If the problem continued, it would then be related to corrupted files being utilized by the form.