>Hi. I am working on a Win 98 pc on a NT4 network. Terminal Server is on a separate Win2000 server, but my problem is on a pc plugged directly into the switch.
>The problem: the screen flashed (much like a shutter). I am thinking that this happens when a thisform.refresh is issued.
>Any help on this?

If the local PC is accessing TS, It's most likely an issue with either the terminal server client or the bandwidth available between the client and the terminal server. The refresh runs entirely on the server side; since native VFP controls are bitmaps, there's a fair chance that the entire client screen is passed across the wire as a bitmap during the refresh, followed by the thin-client controlled interaction region descriptors. If running at a lower color depth produces considerable improvement, I'd study the refresh to see if it's possible to update fewer controls, or to increase available bandwidth between the client and terminal server. If you have extensive graphic images which remain static, investigate caching bitmaps at the local client to reduce transmission of image data at refresh - if the bitmap is held on the local client, it's that much less screen image detailsent over the wireper refresh.

I've also founf that issuing a lockscreen, performing the form updates and refreshes during the lockscreen and after update finishes, releasing the lockscreen generally reduces the number of redraw processes initiated.

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