Most older programs, like The Dog Ate It are using the old 240x320 format with double pixel size. So for TDAI, this had the effect, that the ClearTyped text was badly readable because of the big pixels.
The problem is that these old programs don't bring the
HI_RES_AWARE flag which causes this double pixel mode, i.e.
the program thinks the screen has only 240x320 pixels but Windows Mobile paints every pixel as 2x2 pixels on the screen
So I found pocketnow.com which suggests to download
the MuiTest application and unpack it into any folder.
There you'll find a file
MuiTest.exe.0409.mui. This file only contains the statement that the application should be
run in VGA mode - and this is transferable to any other application. So for TDAI, the executable is named
TheDogAteIt.exe so you have to rename the MUI file to
TheDogAteIt.exe.0409.mui and put it in the same directory on
the device. Now, TDAI should run in VGA.