Avatars Resizing??

[invitezone]

I have allowed usergroups to upload avatart 150x150 in size.
When a user uploads an avatar of that size they are being resized to 149 .
When the same user upload one of 151 it was resized to 108.

Any idea what is happening here?
this seems very strange.

Thanks

[Thunderbird8]

Are they getting resized due to having too large of a filesize? Both filesize and resolution must be within the set limits, or the board will make them that way.