Unknown Issue....

Hello All,
I am facing a bit strange issue right now. I made a image for normal desktop
application with full driver support, full printer support, .Net Framework1.1
and other basic supports.
I am using XP Embedded SP2. My image goes to somehow around
220MB(Compressed) and using EWF RAM-REG Mode. Deploying image in a
CF(512MB-Removable Media).
Now I am using a Datamax Thermal printers and having a printer configuration
utility CD with these printers with few installers.
Case 1: EWF Enabled:

In this case sometimes if I tried or attempt to install any application than
if its a small application than it gets installed but if application is a bit
bulky than suddenly it pop-ups a message box with message
Insert DISK with "YES" and "NO" buttons on it. I dont understand what
exactly may be the problem.

Case 2: EWF Disabled:

In case I try to install any application remotely i.e via internal
Network(LAN) than once again it gives the same error as above with message
box "Insert DISK" with two tabs of "YES" and "NO". but if I copied this
installer on the image itself and install it, than it gets installed
properly. and as we are using these for images with small cabinet hardware
without CD_ROM so we usually install things remotely but this is what a error
comes a no. of times.

The above case is something which happens most of the times with different
installers, but not everytime, but mostly it happens, Has anybody faced such
problems. Is it something I am doing wrong.
Plz Help
--
Amit S. Kadam
India