There is a program called forceHires that i have on my PDA to make all these old programs that are perfectly capable of high res actually use it. it shows up as a control panel.
i have no idea where i got it, i think all the instructions were in japanese. the program itself is english though.
anyway, i'll just throw it here for anyone who wants it for a while
http://www.adam.com.au/kellyjones/temp/forcehires.rar
The gsgetfile.dll and forceHires.cpl need to both be put in your PDA's /windows folder. run setSecurity if the 'unsigned code' warning gets annoying.
then you can toggle on and off hires for programs of your own choosing from your PDA's system settings tab. it even makes Microsoft reader's image renderings look much better.
i reccommend setting default zoom to 200 or 300% in adobe reader after doing this. reader's settings dialog will be messed up while hires is on, but just turn it off, make the changes, and turn it back on again.