Sorry did not mean confusion...
My problem issue is not with avatars. It is with the logo, such as logo-phpBB.gif which is 7.8kbs,, which will not display on the upper Left corner of the forum page. However, if I rename logo-phpBB_med.gif ( 3.7kbs) to that of logo_phpBB.gif.. the logo will appear (display on page).
If I were to take any Gif logo, makes no difference what, if the size of the logo is 4096 or less, there is no problem in displaying the logo.. It is only IF the DANG LOGO is larger than 4,096 that the logo fails to display.
As to the APC config in sizing, I believe that size parameter is related to the Avatar's and not the LOGO's.. and to ensure that it did not effect I increased it to 8192.. no change...
and please advise