attachment thumbnail not showing

[gsmlover4u]

hi to all my forum attachment not showing
setting is already
Admin CP > vBulletin Options > vBulletin Options > Message Attachment Options

View Attached Images Inline - Yes
Enable Thumbnails - No

attachment link show this www.domain.com/attachment.php

here is the link
http://www.pak-gsm.com/news-and-updates/63578-upwards-720-000-android-wear-devices-shipped-2014-a.html#post119621

and plz see screenshort

[RichieBoy67]

Did you rebuild them in the maintenance section under update counters?

[gsmlover4u]

yes i rebuild thumbnail

[kh99]

What version are you running? I think this was a bug in one version.

[Lynne]

What version of PHP? And you should probably upgrade to 4.2.2.

[gsmlover4u]

i am runing vb 4.2.1 and php 5.3.28

[RichieBoy67]

Are you using gd2 or imagemagik? Did you check settings?