Fractional / decimal data is a function of the stored data files, and is not changeable from within MS, so try this....
Start the Downloader
Update your symbols database: Tools > Update Symbol Database
Create new securities to replace the existing ones: File > New > Security
Select Look-Up button to open security database
Select the Type and Group as required
Select-All to select all the securities
Edit Symbol
Display Units, select decimal
then just create the new symbols as requires and detailed in the MS Users Manual...
Hope this helps
wabbit
MS: 6.52 EOD, 7.x EOD, 8.0 PRO, 9.2 PRO w/QC, 10 PRO w/QC & MDK
For custom MetaStock programming : http://www.wabbit.com.au
My SkyPE status : 
My SkyPE account : wabbit.com.au