It may not be the refresh rate.

  LastChip 21:58 11 Oct 2003

Did you change the driver for your monitor. If that is incorrect, you will get all sorts of strange problems.

If you really believe it to be the refresh rate, right click your desktop and select Properties; Settings; Advanced; Adaptor; and choose your required refresh rate. Most will be set to optimal, and generally, this works well.

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