Hi Wong

First, with using the standard windows driver I meant not using the drivers you got from HP.

For a lot of the HP printers in Windows already exist drivers from Microsoft. They may not be that sophisticated, but mostly behave a lot better than the original drivers from HP that are known to be buggy. I can't say if there is one for the HP 2001, but try once the MS HP4 driver to see if that helps.

An other measure that invokes some coding though, is to insert after every call to the printer immediately a call to the function _fpreset(). This will clean up the FPU that's left in a not cleaned state by the HP driver.

Declare it once in your main program like

DECLARE _fpreset IN msvcrt20.dll

and then after every attempt to print do a

=_fpreset()

in your code. This might help as well.

Regards
Markus