>>>Just a SWAG, but you might try altering the screen and keyboard behaviors for the VDM in the PIF, and trying running it in Win95 compatibility mode with explicit memory limits established in the PIF to keep the combined convention plus EMS (FPDOS 2.5 used EMS for it's DOS Extender; FPDOS 2.6 used EMS for it's Standard Edition and preferred DPMI for the Extended edition, and in all cases, the total memory allocated to the VDM should not exceed 16MB or wraparound issues can arise.)
>>
>>If this is a memory-issue (at all), NEVER use EMS. There will be all sorts of problems occasionally for 100 % sure. This counts for Dos-machines and for W95 machines (the latter usually having it enabled by default).
>>
>
>My experience does not match yours at all; I'd suggest that you examine exactly how you allot EMS. For both DOS and Win95 (neither of which I'll support any more) the use of QEMM is far preferable to the solutions provided by MS natively. I have no problems using correctly configured EMS, and I don't lock up in browses that from the left-most column using either the arrow keys or the Tab key.
>
>>Note that we didn't encounter such behaviour ever (though we "browse" a lot ;), but pressing left-arrow on the left-most column (at the leftmost char) will give you a C5 (win-machines).

Ed, I just assume that you're right anyway, but the problem is that the times we mingle with IO areas for network cards and video are over. I mean, do we ? can we still ? of course we can, but it IMO is too hard with the plug and pray story. IMHO (though not sure) the Dos-extender was designed for extended memory, and not for expanded memory. Further, I'd say that the EMS stuff is to much about software (mapping of memory), so you'd just ask for trouble when using it. And, it is slower.
Never mind, you are right in the end, but how to deal with all your users far away ? I mean, when there is this package, you can't control you users at all, but for having the word : better don't use EMS. To my experience once upon a time you'll have something strange happening, but which is rare (I mean, once in 6 months or so). In all such cases (unexplainable stuff) the user had EMS On, and in all cases with no EMS, all "strangenesses" (ever happening obviously) could be explained in the end.
That's why I said it. ;))