I get a System Error divide by zero or overflow error trying to open old software that worked well on XP home on a computer with an AMD processor. My new computer has XP professional with a pentium 4 processor. Any clues

When the hard drive is in a computer running XP home all fonts are available particularly Commercial Script BT. When the hard drive is placed in a computer running XP pro this particular font is not available. Word documents using this font on the first computer are fine. The same documents on the second computer have a default font although the font box states it is Commercial Script BT. An ideas oh gurus

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