hi Pete, applied the suggestion.
Just to resume what was the situation changed in config.sys
THREADS=3072 corrected to 512 ,
VIRTUALADDRESSLIMIT=2560 corrected to 3072 that I know being the maximum value possible
PROCESSES=... no such line found, which I created on your indication PROCESSES=128
then have given the command yum install for the prerequisites; after some packages found existing in their correct version, here what it did:
Installation:
bzip2 pentium4 1.0.8-1.oc00 netlabs-rel 46 k
libvpx-legacy-6 pentium4 1.8.2-1.oc00.L netlabs-exp 1.4 M
replacing libvpx.pentium4 1.8.2-1.oc00
Upgrade:
libcx pentium4 0.7.4-1.oc00 netlabs-rel 86 k
libjpeg-turbo pentium4 3.0.1-1.oc00 netlabs-exp 291 k
libpng pentium4 1.6.40-1.oc00 netlabs-exp 117 k
libvpx pentium4 1.13.1-1.oc00 netlabs-exp 1.5 M
zlib pentium4 1.3-1.oc00 netlabs-exp 91 k
Dependencies update:
minizip pentium4 1.3-1.oc00 netlabs-exp 25 k
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Install 2 Packages
Upgrade 6 Packages
Furthermore, assuming that SM Mail & Messages is same as Thunderbird, I also installed the prerequisites stated for TB 45.x (effective changed mmap 0.5-1 386 to mmap 0.5-1 pentium4)
but SM Mail & Messages issue remained same as before, also with SM started in safe mode. It happens exactly as it should display the email pane folders
Thank you