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Some video card drivers do not work correctly.  Symptoms are:

•layout incorrect (wrong positioning of text and lines)

•the moving markers in the rulers might be drawn incorrectly

•colors of bitmaps are shown incorrectly

•scrolling objects with hatch styles may lead into misalignment of the hatching

•bitmaps are not shown when color-resolution of video-adapter is higher than the bitmap-resolution (i.e., video-adapter = true-color, bitmap=256 colors)

•in multiple-colored bitmaps, text colors are damaged and texts not drawn / half drawn / drawn incorrectly

•driver crashes when using bitmaps

•driver may crash under other circumstances

 

Discuss bugs with the video-card manufacturer, unless you also experience these problems with the standard VGA driver by Microsoft (in which case VPE is the problem - and this is not known until now).