Do you know these problems:
You want to buy a new or used computer monitor, but don't want the pig in a poke!
You need to adjust your monitor's geometry or match the color appearance of multiple monitors - but don't know how!?

Here is the solution: Use my nifty monitor tester application "MonitorTest"!

Various test patterns, arranged in three groups, allow to check and/or adjust your monitors in every aspect! You can look for defective TFT (sub) pixels, test the geometry of a CRT, adjust your monitor settings and much more.

Multiple monitor support options let you choose the monitor you want to check via a popup menu. You can even check all connected monitors at the same time. Special test patterns give assistance when you try to match the color appearance of all available monitors!

A small info box gives information about the available number of colors, width and height of the selected monitor.